History VideoGame / Ys

** Platforms: [=PlayStation=] 4, [=PlayStation=] 5, Nintendo Switch

''Ys'' is also famous for its power-rock soundtracks composed by various members of Falcom's "JDK Sound Team", most famously by Creator/YuzoKoshiro (I-II) and Mieko Ishikawa (II-III) and performed by Ryo Yonemitsu (music for the Platform/TurboGrafx16 versions and the "Perfect Collections") and, more recently, Yukihiro Jindo (arrangements of ''Ys: The Oath in Felghana'' and ''Ys I & II Chronicles''). In addition to standalone soundtracks, the [=TurboGrafx-CD=] games have much of their in-game soundtracks encoded in the same standardized "Red Book" format as a typical audio compact disc, allowing ''the game discs themselves'' to double as soundtrack [=CDs=] when placed into a CD player or other optical media player. Meanwhile, the Windows version of some ''Ys'' games store their audio files in the [[http://www.vorbis.com/ Ogg Vorbis format]] (an open format, thus probably supported by almost any media player) and can be found and played by digging through the game's files and getting the ".ogg" files from the music folder. A few ''Ys'' re-releases also do special things with their soundtracks, specifically their soundtrack history[[note]]''Ys I & II Chronicles'' for the [=PlayStation=] Portable and the port of ''Ys: The Oath in Felghana'' to the same system have the option for players to choose between multiple versions of the games' soundtracks within the games themselves - ''Chronicles'' contains the original {{Platform/PC 88}} soundtracks from the first two games as well as the newer ''Complete''/''Eternal'' versions, both in addition to the the JDK-performed remixes (the other two options are synthesized) new to ''Chronicles'', while ''The Oath in Felghana'' contains the soundtracks from the PC-88 and Platform/SharpX68000 versions of the original ''Ys III: Wanderers from Ys'' in addition to the soundtrack originally composed for ''The Oath in Felghana'' itself[[/note]].

%%* DropTheHammer: Calilica in ''Ys: Memories of Celceta''.

** Taking place roughly a month after ''Ys II'', Adol finds himself in the northern sea called Obelia Gulf, comprised of an archipelago of small and large islands. He encounters a group of maritime dwellers, known as the Normans, as well as the immortal undead, known as the Griegr. While Adol remains as the protagonist, he is joined by Karja Balta, a Norman pirate and heroine of ''Ys X'', serving as the {{Deuteragonist}}, making them the only playable characters of the game.

** Taking place roughly a month after ''Ys II'', Adol finds himself in the northern sea called Obelia Bay, comprised of an archipelago of small and large islands. He encounters a group of maritime dwellers, known as the Normans, as well as the immortal undead, known as the Griegers. While Adol remains as the protagonist, he is joined by Karja Balta, a Norman pirate and heroine of ''Ys X'', serving as the {{Deuteragonist}}, making them the only playable characters of the game.

** ''Ys IX'' - Balduq (Paris, France

** ''Ys IX'' - Balduq (Paris, France)
** ''Ys X'' - Obelia Bay (Denmark)

** "Ys X" - Obelia Bay (Denmark)

** Ys X - Obelia Bay (Denmark)

** Adol Christin sets out for his first adventure, winding up in the town of Minea on the island of Esteria. When a fortune teller speaks to him of an evil lurking in Esteria, Adol seeks out the Books of Ys, six tomes containing the history of the ancient "Eldeen" civilization and knowledge on how to defeat this darkness. ''Ys I'' also introduces the "Clan of Darkness", a group of recurring antagonists whose ties to Ys form the MythArc of the franchise.

** The first {{Prequel}} in the franchise, both games occur a year before ''Ys III'', where Adol returns to Minea to catch-up with old friends, but departs for the land of Celceta after coming across a message in a bottle requesting help. The difference between ''Mask of the Sun'' and ''The Dawn of Ys'' with regards to plot is none of the events in Minea occur in ''Mask of the Sun'': Adol immediately leaves for Celceta, while he stays in Minea for a while in ''The Dawn of Ys''. The "Romun Empire" is introduced in these games, another group of antagonists that make recurring appearances throughout the franchise.

** Adol is attacked by a Romun Empire navy in the Atlas Ocean while traveling aboard an allied pirate ship some time after the events of ''Ys V''. Its crew steers into the "Vortex of Canaan" maelstrom, throwing Adol overboard, washing him ashore on the nearby Canaan Islands. He discovers there's no way off these islands unless the Vortex surrounding it stops, pressing him to unlock the mysteries and secrets behind this phenomenon.

** Platforms: [=PlayStation=] Vita, [=PlayStation=] 4, Windows, Nintendo Switch, UsefulNotes/GoogleStadia, Platform/PlayStation5

** When Adol is shipwrecked traveling from Xandria back to the Eresia mainland by a giant sea creature [[ImmediateSequel immediately after]] ''Ys V'', he wakes up on the unfamiliar Isle of Seiren in the Gaete Sea, alongside other passengers from their ship "Lombardia". Trapped on this uncharted, uninhabited place, Adol must work with his newfound companions to survive and find a way off the island; meanwhile, he begins having dreams about a blue-haired woman called Dana, who has a connection to this place, and the horrible curse behind it. While Adol is the primary protagonist of the game, the story occasionally switches perspectives to Dana, who serves as the {{Deuteragonist}}.

** Returning to the Eresian continent from Altago after the events of ''Ys SEVEN'', Adol is arrested by Romun authorities upon arriving at "Balduq", a "prison city" in the Gllia region, for his actions from previous adventures. Upon making his escape from prison, he is cursed by the mysterious Aprilis and turned into a Monstrum, forced to combat demonic entities called "Lemures" during the "Grimwald Nox". Alongside other Monstrum suffering the same fate as he is, Adol must find a way to band with other Monstrum and undo their predicament, while solving the connection between Balduq and the Grimwald Nox.

** Taking place roughly a month after ''Ys II'', Adol finds himself in the northern sea called "Obelia Bay", comprised of an archipelago of small and large islands. He encounters a group of maritime dwellers, known as the "Normans", as well as the immortal undead, known as the "Griegers". While Adol remains as the protagonist, he is joined by Karja Balta, a Norman pirate and heroine of ''Ys X'', serving as the {{Deuteragonist}}, making them the only playable characters of the game.

'''Ys''' (typically pronounced as "ease"[[note]]This pronunciation is the one used by Falcom themselves during one of the narrated trailers as well as the series' most common localization publisher, Creator/XSEEDGames[[/note]], though "yees" was used instead in the English localization of ''Ys: The Ark of Napishtim'') is an ActionRPG video game franchise developed by Creator/{{Falcom}} and published by its developer in Japan and currently published by [[Creator/NipponIchi NIS America]] worldwide, with a ''large'' number of companies having localized licensed ports in the past (such as the [[UsefulNotes/TurboGrafx16 TurboGrafx-CD]] versions) that has spanned [[LongRunners over thirty years]] and twenty consoles. Nearly all titles chronicle the adventures of Adol Christin, a [[TheDrifter wandering]] [[HeroesPreferSwords swordsman]] with [[RedHeadedHero fiery red hair]] who always seems to be in the right place at the wrong time as far as [[TheEndOfTheWorldAsWeKnowIt world-threatening disasters]] are concerned. The eponymous "Ys" is a [[FloatingContinent mythical island floating in the sky]], which is visited in some games and merely referenced in others.

The games have a few recurring characters (leaving aside Adol, who is the primary playable character in every game except for the {{Prequel}}s ''Ys Origin'' and ''Ys Strategy'') and take place in the same world with a consistent {{Continuity}}, but otherwise keep things fresh by introducing a brand new cast of characters, location, and scenario for every major release, not unlike fellow traveling swordsman-starring series ''Franchise/TheLegendOfZelda''. Most are generally played with an isometric top-down perspective - the earliest games require Adol to "ram" into enemies in just the right spot to attack and defeat them, while later installments use a traditional HackAndSlash style of game-play (beginning with ''Ys V''). The franchise has gotten {{Video Game Remake}}s and "[[UpdatedRerelease re-imaginings]]" of installments in order to fit them better into the series' ever-expanding mythology (simulataneously, {{Compilation Rerelease}}s like ''Ys I & II Complete'' and ''Ys Eternal'', remakes of ''Ys I'' and ''Ys II'', still feature ramming combat, which would be carried over to the PC and Sony UsefulNotes/PlayStationPortable version ''Ys I & II Chronicles'').

''Ys'' is also famous for its power-rock soundtracks composed by various members of Falcom's "JDK Sound Team", most famously by Creator/YuzoKoshiro (I-II) and Mieko Ishikawa (II-III) and performed by Ryo Yonemitsu (music for the UsefulNotes/TurboGrafx16 versions and the "Perfect Collections") and, more recently, Yukihiro Jindo (arrangements of ''Ys: The Oath in Felghana'' and ''Ys I & II Chronicles''). In addition to standalone soundtracks, the [=TurboGrafx-CD=] games have much of their in-game soundtracks encoded in the same standardized "Red Book" format as a typical audio compact disc, allowing ''the game discs themselves'' to double as soundtrack [=CDs=] when placed into a CD player or other optical media player. Meanwhile, the Windows version of some ''Ys'' games store their audio files in the [[http://www.vorbis.com/ Ogg Vorbis format]] (an open format, thus probably supported by almost any media player) and can be found and played by digging through the game's files and getting the ".ogg" files from the music folder. A few ''Ys'' re-releases also do special things with their soundtracks, specifically their soundtrack history[[note]]''Ys I & II Chronicles'' for the [=PlayStation=] Portable and the port of ''Ys: The Oath in Felghana'' to the same system have the option for players to choose between multiple versions of the games' soundtracks within the games themselves - ''Chronicles'' contains the original {{UsefulNotes/PC 88}} soundtracks from the first two games as well as the newer ''Complete''/''Eternal'' versions, both in addition to the the JDK-performed remixes (the other two options are synthesized) new to ''Chronicles'', while ''The Oath in Felghana'' contains the soundtracks from the PC-88 and UsefulNotes/SharpX68000 versions of the original ''Ys III: Wanderers from Ys'' in addition to the soundtrack originally composed for ''The Oath in Felghana'' itself[[/note]].

For the longest time, the franchise suffered from extensive NoExportForYou syndrome after the series' lackluster initial release push in the early 1990s, the primary reason why ''Ys'' was practically unheard of outside of Japan for so long. Beginning with the release of ''Ys VI: The Ark of Napishtim'' on the UsefulNotes/PlayStation2 and [=PlayStation=] Portable, ''Ys: Book I & II'' on the UsefulNotes/{{Wii}} UsefulNotes/VirtualConsole, and ''Legacy of Ys: Books I & II'' for the UsefulNotes/NintendoDS, the games started to reach a much wider audience, with XSEED Games having announced a partnership with Falcom since 2010 that includes the localization of ''VideoGame/YsSEVEN'', ''Ys: The Oath in Felghana'', and ''Ys I & II Chronicles'' for the [=PlayStation=] Portable in the North American market, in that order. By March 2012, XSEED and Falcom followed this up with a series of releases on the UsefulNotes/{{Steam}} service of Creator/ValveSoftware, starting with the original Windows version of ''The Oath in Felghana'' and the Japan-only ''Ys Origin'', continued by a further-updated PC version of ''Ys I & II Chronicles''[[note]]Ironically giving ''English-speakers'' the definitive version of that compilation[[/note]]. Finally, both companies capped it off with the release of ''VideoGame/YsMemoriesOfCelceta'', Falcom's definitive version of the ''Ys IV'' duology on the UsefulNotes/PlayStationVita, released in English in November 2013. XSEED did not take the reins on 2017's ''Ys VIII'' localization because NIS America, which published the [=PlayStation=] Portable version of ''Ys: Memories of Celceta'' in the European region, outbid XSEED Games for the worldwide localization, publishing, and porting rights going forward post-''Ys VIII''.

** Platforms: PC-88, Sharp X1, UsefulNotes/PC98, [[Platform/FMTowns FM-7/77]], [[Platform/FMTowns FM-77AV]], [[UsefulNotes/{{MSX}} MSX2]], Sharp X68000, UsefulNotes/SegaMasterSystem, UsefulNotes/{{Famicom}}, [=TurboGrafx-CD=], MS-DOS, [[UsefulNotes/AppleII Apple IIgs]], Microsoft Windows, UsefulNotes/SegaSaturn, [=PlayStation 2=], Virtual Console, Nintendo DS, UsefulNotes/{{iOS|Games}}, UsefulNotes/{{Android|Games}}

** Platforms: PC-88, PC-98, Sharp X1turbo, FM-77AV, UsefulNotes/{{MSX 2}}, Famicom, [=TurboGrafx-CD=], MS-DOS, Microsoft Windows, Sega Saturn, [=PlayStation=] 2, Virtual Console, Nintendo DS, iOS, Android

** Platforms: PC-88, PC-98, [=MSX 2=], Sharp X68000, Famicom, UsefulNotes/SuperFamicom, UsefulNotes/SegaGenesis, [=TurboGrafx-CD=], [=PlayStation=] 2,

** [[VideoGameRemake Remade]] as '''VideoGame/YsTheOathInFelghana''' in 2005 for Windows, this version replaces the side-scrolling aspect in favor of the 3D game-play used in ''Ys VI: The Ark of Napishtim'', while expanding the original story and dungeons for further play. Like ''Ys I & II Chronicles'', a [=PlayStation=] Portable version was released in 2010 and a Steam release in 2012. A remastered version titled ''Ys Memoire: The Oath in Felghana'' was released on the UsefulNotes/NintendoSwitch for Japan on April 27, 2023.

** Platforms: Super Famicom (''Mask of the Sun''), [=PlayStation=] 2 (''Mask of the Sun''), UsefulNotes/PCEngine (''The Dawn of Ys'')

** Both games were compiled and developed directly by Falcom as VideoGameRemake '''VideoGame/YsMemoriesOfCelceta''', released for the [=PlayStation=] Vita in 2012, including a worldwide PC port in 2018[[note]]China received a PC port in 2015[[/note]], displacing ''Mask of the Sun'' and ''The Dawn of Ys'' in the series' {{Continuity}}. Furthermore, ''Memories of Celceta'' borrows from the combat utilized in ''Ys SEVEN'', while refining its three-character party system, alongside new mechanic "Flash Move", where dodging an enemy attack right before it hits temporarily slows all enemy movement down (akin to "Witch Time" in ''VideoGame/{{Bayonetta}}''). In May 2019, a port for the UsefulNotes/PlayStation4 was released for the platform.

** Platforms: Windows, [=PlayStation=] 4, [=PlayStation=] Vita, UsefulNotes/XboxOne, UsefulNotes/NintendoSwitch

** Platforms: [=PlayStation=] Vita, [=PlayStation=] 4, Windows, Nintendo Switch, UsefulNotes/GoogleStadia, UsefulNotes/PlayStation5

** Platforms: UsefulNotes/{{Android|Games}}, UsefulNotes/{{iOS|Games}}

** Platforms: UsefulNotes/{{Android|Games}}, UsefulNotes/{{iOS|Games}}

* AmericanKirbyIsHardcore: [[https://static.tvtropes.org/pmwiki/pub/images/ys3-genesis.jpg This]] is American box art for ''Ys III'' for UsefulNotes/SegaGenesis. Just compare Adol with the picture above. The [[http://www.gamefaqs.com/snes/562845-ys-iii-wanderers-from-ys/images/box-28816 SNES version]] and the [[http://img.gamefaqs.net/box/1/8/8/20188_front.jpg TurboGrafx-CD version]] (the latter of which depicts Genos instead of Adol) aren't quite as bad, especially since the SNES version doesn't end up making Adol look like some sort of barbarian, though they still ditch the anime look the series is known for.

* BrokenBridge: Some demons that guard a chest containing a critical item were changed from a BeefGate where you had to be at least level 6 in the original Ys II in order to damage the stone demons guarding a chest to requiring a long sword or stronger sword in order to damage these demons in the [[UsefulNotes/TurboGrafx16 TurboGrafx-CD]] version since levels carried over from Ys I.

** The DS version of ''Ys I & II'' translates the name of the Shrine of Solomon (that being the translation used in Creator/XSEEDGames's translation of the PSP version, previously worded as Solomon Shrine in the [[UsefulNotes/TurboGrafx16 TurboGrafx-CD]] version) as Palace of Salmon. One implies wisdom. The other implies fish. The weird thing is that Atlus USA did the DS version's translation and didn't do terribly bad with the rest of the game, but Atlus and XSEED Games both try to go for natural-sounding English text in their translations (and not just for Ys), with XSEED being the one to do so with its translation. A similar translation shows up with [=DotEmu=]'s iOS and Android ports of Ys Chronicles II when the title card for the Shrine of Solomon shows because these versions use the Japanese title cards which shows the Japanese on top and Falcom's own English translation of the place name below the Japanese with the English title being the Shrine of Salmon. This is despite the fact that [=DotEmu=] used XSEED Games's localization for the English version's other text in Ys Chronicles II.

* LongSongShortScene: ''Ys III'' can get really weird/bad about this with the song "The Boy Who Had Wings" only played at the entrances of dungeons (these take 30 seconds to cross, typically, with the song being about two minutes long), "Prelude to Adventure" played on the world map (which can often be dealt with in ''under ten seconds'', despite the song being about a minute per loop!), and "Theme of Chester" only plays in the last corridor of the Ilburns Ruins, and only in certain versions. On that note, the biggest standout is perhaps "Chop!!", which plays in a brief confrontation with Chester... exclusively in the ''[[UsefulNotes/SharpX68000 X68000]] version'' of the game, meaning most versions lack the song entirely! The status of most of these is inverted (almost certainly purposefully) in the ''Oath in Felghana'', which gives "The Boy Who Had Wings" much more respect by making it the main overworld theme, while "Prelude to Adventure" can only be heard by stepping outside of town before it's time to set out for the first dungeon (which is after Adol introduces himself to the villagers), after which "The Boy Who Had Wings" plays there instead, and "Theme of Chester" is actually used as Chester's {{leitmotif}}, even getting a second version for later in the game. "Chop!!", meanwhile, was heavily remixed and became the theme of the infamously difficult second boss fight with Chester.

* PaedoHunt: The achievement "Police Are On Their Way" from the UsefulNotes/{{Steam}} version of ''Ys II'' implies this. The icon shows Tarf, some hearts, and a [[CensorBox black box]] with the words "[[NoJustNoReaction NO. I REFUSE TO DRAW THIS]]" written on it.

** Platforms: PC-88, Sharp X1, UsefulNotes/PC98, [[UsefulNotes/FMTowns FM-7/77]], [[UsefulNotes/FMTowns FM-77AV]], [[UsefulNotes/{{MSX}} MSX2]], Sharp X68000, UsefulNotes/SegaMasterSystem, UsefulNotes/{{Famicom}}, [=TurboGrafx-CD=], MS-DOS, [[UsefulNotes/AppleII Apple IIgs]], Microsoft Windows, UsefulNotes/SegaSaturn, [=PlayStation 2=], Virtual Console, Nintendo DS, UsefulNotes/{{iOS|Games}}, UsefulNotes/{{Android|Games}}

** Eschewing the party-based combat and damage type mechanics introduced since ''Ys SEVEN'', ''Ys X'' features a new "Cross Action" system which allows players to switch between two modes according to the battle situation: "Solo Mode" where players attack using one character with help from their partner, and "Combination Mode", where both characters attack together. In addition, ''Ys X'' will mark the first time in the series that players can control Adol’s ship as it sails through a nautical environment. The game was released in Japan on September 28, 2023.

** Another mobile installment, but with MassivelyMultiplayerOnlineRoleplayingGame elements, ''Ys VI Online'' is based on the ''Ys VI'' story as an AllegedlyFreeGame with {{Microtransactions}}. Developed by Restar Games and published by Falcom, it initially launched in Japan in July 2021, then in Taiwan three months later. The game was available internationally in August 2022.

* {{Feelies}}: Atlus released a soundtrack CD with the DS compilation of the first two games and Creator/XSEEDGames released soundtrack [=CDs=] and various other items (such as a cloth map of part of the series's world) with the premium editions of ''SEVEN'' and ''The Oath in Felghana'' and the initial release of ''I & II Chronicles''.

** Retaining the core mechanics from ''Ys VIII'', ''Ys IX'' introduces the titular "Monstrum" serving as the central characters, whose "Gifts" can be utilized in exploration and combat. Like Beast Raids from the previous game, players will participate in TowerDefense segments during mandatory events. ''Ys IX'' was launched first on September 26, 2019 in Japan for the [=PlayStation=] 4, with NIS America publishing the localization for a February 2, 2021 release, while the PC, Switch and Stadia versions released on July 6 of the same year.

** The game introduces a new system called “Cross Action” which allows players to switch between two modes according to the situation: “Solo Mode” where players attack using one character with help from their partner, and “Combination Mode”, where both characters attack together. In addition, ''Ys X'' will mark the first time in the series that players can control Adol’s ship as it sails through a nautical environment.
** Taking place some time after ''Ys II'', Adol finds himself in the northern sea called "Obelia Bay", comprised of an archipelago of small and large islands. He encounters a group of maritime dwellers, known as the “Normans”, as well as the immortal undead, known as the “Griegers”.

* AnachronismStew: The world of Ys is dominated by the Romun Empire, whose capital is in the City of Romn on what appears to be the Italian Peninsula. Most of the other regions are [[FantasyCounterpartCulture Fantasy Counterpart Cultures]] of Rome's contemporaries, such as Altago (Carthage), Celceta (Celtiberi), and Gllia (Gaul) However, much of the aesthetics more closely resemble the medieval era rather than the ancient era. The Romun Empire more closely resembles the Holy Roman Empire rather than the Roman Empire, with its architecture being medieval in nature, and almost all of the known Romun rulers have Germanic names rather than Latin ones. Other nations follow suit, with Altago coming off as more Arab than Phoenecian, Gllia having Gothic architecture that wouldn't be introduced until long after Rome fell, and the Normans of Obelia Bay clearly being based on Norse culture and aesthetics, despite the Age of Vikings coming centuries after the fall of the (Western) Roman Empire.

* CorruptChurch: [[spoiler:If the Romun Empire's religion is not a ScamReligion, Bishop Nikolas Garland turns the church in Felghana into this.]]

** In ''Ys: Memories of Celceta'', Misshy from the ''Trails'' series appears in various places. (This could possibly also qualify as a ShoutOut.)

* TheEmpire: The Romun Empire, which resembles the ancient Roman Empire, in ''VideoGame/YsTheOathInFelghana'', ''Ys IV: Mask of the Sun'', ''Ys IV: The Dawn of Ys'', and ''Ys VI: The Ark of Napisthim''. It is downplayed in Memories of Celceta because Griselda, the local ruler from the Romun Empire, is an oddity who wants to stamp out corruption and hires Adol to map out the area. She also declares the evil military officers as [[InsaneAdmiral rogue military officers]] that Adol and his party have to hunt down. This trope is also downplayed in ''VideoGame/YsVIIILacrimosaOfDana'' because the military cop from that empire in that game is an honest cop who is hunting down a SerialKiller. This trope is played completely straight in ''VideoGame/YsVITheArkOfNapishtim'', where Adol has to rescue slaves from a Romun admiral. The Romun Empire has become one of Adol's two main recurring enemies, the other being the Clan of Darkness, many of whom [[BreadEggsBreadedEggs take high-ranking positions in the Romun Empire to get the resources they need for their own plots]].

* FantasyPantheon: IX introduces the Nors, which is this series' analogue to the Norse Pantheon with Grimnir being a combination of Odin and Thor, and Luki being, well, Loki.

%% * GettingCrapPastThe Radar: Due to overwhelming and persistent misuse, GCPTR is on-page examples only until 01 June 2021. If you are reading this in the future, please check the trope page to make sure your example fits the current definition.

* '''[=Ys=] X: Nordics''' (2023)[[/index]]

* BonusBoss: Several in 3D Ys games. Including the [[NighInvulnerability Nigh-invulnerable]] Majunun, which is kind of an über-BossInMookClothing. Its attacks kill you instantly the first time you are able to reach it.

** Platforms: [=PlayStation=] 4, Windows, Nintendo Switch, Google Stadia

* BladeOnAStick: These weapons are the weapons of choice for members of the Clan of Darkness. Examples include Geis in ''Ys VI'' and ''Ys SEVEN'', Kishgal in ''Ys Origins'', and Frieda in ''Ys: Memories of Celceta''.

* BlackMagic: All magic in Ys I, II, and Origin is this because it is sourced from the Black Pearl. Whenever the Black Pearl and other artifacts made of black emelas are used as a source of magic by anyone other than beings made of white emelas, like the Eldeen, demons are generated as a side effect. Another example is the Philosopher's stone in Ys V, which is powered by human sacrifices.

** This however doesn't mean there weren't examples before ''SEVEN'', as Terra and Olha both qualify in ''Ys VI'' (even acting as {{Guest Star PartyMember}}s with Adol in a late section of the game), and we also have Yunica Tovah from ''Origin'', and Elena Stoddart from ''Ys III''/''The Oath In Felghana''.

** Although [[spoiler:Niena isn't from Xandria...]]

* AnachronicOrder: The order the games were released is not the order in which they occurred - chronologically, events in the franchise (released up to 2017) begin with ''Origin'', ''I'', ''II'', ''Memories of Celceta'', ''The Oath in Felghana'', ''V'', ''VIII'', ''VI'', ''SEVEN'' and ends in ''IX''.

* BlackMagic: All magic in Ys I, II, and Origin is this because it is sourced from the Black Pearl. Whenever the Black Pearl and other artifacts made of black emelas are used as a source of magic by anyone other than beings made of white emelas, like the Eldeen, demons are generated as a side effect.
** The Philosopher's stone in Ys V is powered by human sacrifices.

** An immediate {{Sequel}} to ''Omen'', upon assembling the six Books of Ys at the end of the previous game, Adol is instantly transported to the mythical FloatingContinent. The secrets of Ys are unraveled in this game, alongside the identity of the twin goddesses and the Eldeen civilization they once belonged to.
** Because of its immediate {{Sequel}} status, any VideoGameRemake of ''Ys II'' is generally packaged together with ''Ys I'', the first being ''Ys Eternal'' on Windows in 1997 that has updated visuals; this was done again with ''Ys I & II Complete'' for the same platform in 2001. However, the definitive bundle is UpdatedRerelease ''Ys I & II Chronicles'' for the [=PlayStation=] Portable in 2009, featuring two different game modes, change in character portraits (from ''Complete'' or ''Chronicles'') and choice of soundtrack (the original PC-98, ''Complete'' or [=PlayStation=] Portable-exclusive re-arrangement); ''Chronicles'' would be ported to Steam in 2013 as ''Ys I & II Chronicles+''.

** When Adol is shipwrecked traveling from Xandria back to the Eresia mainland by a giant sea creature immediately after ''Ys V'', he wakes up on the unfamiliar Isle of Seiren in the Gaete Sea, alongside other passengers from their ship "Lombardia". Trapped on this uncharted, uninhabited place, Adol must work with his newfound companions to survive and find a way off the island; meanwhile, he begins having dreams about a blue-haired woman called Dana, who has a connection to this place, and the horrible curse behind it. While Adol is the primary protagonist of the game, the story occasionally switches perspectives to Dana, who serves as the {{Deuteragonist}}.

* AnachronicOrder: The order the games were released is not the order in which they occurred - chronologically, events in the franchise (released up to 2017) begin with ''Origin'', ''I'', ''II'', ''Memories of Celceta'', ''The Oath in Felghana'', ''V'', ''VIII'', ''VI.'' ''SEVEN'' and ends in ''IX''.

** This however doesn't mean there weren't examples before ''SEVEN'', as Terra and Olha both qualify in ''Ys VI'' (even acting as GuestPartyMembers with Adol in a late section of the game), and we also have Yunica Tovah from ''Origin'', and Elena Stoddart from ''Ys III''/''The Oath In Felghana''.