History Characters / OnlySenseOnline

** It should be noted that Yun's in-game avatar is not merely a feminine-looking boy, but it in fact genuinely female. This is proven at the hot springs: the system does not allow anyone to enter the side belonging to the opposite gender (for hopefully obvious reasons) and Yun is unable to enter the male side of the baths.

* ThanatosGambit: When he knew he was likely to get wiped out in the forest outside the Crafting Guild event, he used a skill to deplete his own HP so that he wouldn't take the much more substantial penalty.

* AnAxToGrind: Kinda. He eventually gets an ax-like kitchen knife, Meat Cleaver - Heavy Black, for both cooking and strong but slower melee attacks.

* BornLucky: Yun always have a knack of getting rare drops from mobs and bosses. Sei sometimes is annoyed that she never really gets drop she wants while her little brother oftentimes gets good drops instead.

* ItemCaddy: He comes to most any fight or event with an almost CrazyPrepared supply of healing and mana-restoring items, ready to keep himself and anyone else alive. He even simulates the "Exclusive Items" side of the Caddy by keeping some of his toys solely for his own use, such as his spell-charged Magic Gems.

* MistakenForSubculture: Because of his constant usage of masculine speech, people frequently assumes Yun is an OreOnna in ''OSO''.

One of the top crafters in ''OSO'', Magi is also the first friend Yun made in-game after the latter patronized her market stall and sold her a number of good quality [[HealingPotion healing potions]]. Intrigued by Yun's unconventional Sense build, she quickly became fast friends with him, and acts as a mentor figure for him in the game, although she still believes Yun is a girl, despite his protestations otherwise.

* TheStrategist: Cloude has a flair of planning and organizing, which extends also to large-scale raids in ''OSO'', and he was actually invited to act as the strategist by other players to clear the raid segment during the "Forest Camping Game" event.

Yun's younger sister, Myu is a hardcore gamer and was a beta tester for ''OSO''. She is very thrilled when she learned that her older brother is joining ''OSO'', and helped him out in the registration process. Her MinMaxing approach to playing ''OSO'' as opposed to Yun's casual play style means that the two of them actually tend not to play together, although she does frequent Yun's shop for his high-quality consumables. Instead, Myu usually plays ''OSO'' together with a party of five other girls of similar age and is its nominal leader.

** He eventually does get a katana-like kitchen knife, a Dismantling Knife - Blue Dancer, which can be wielded with one or both hands.
* CassandraTruth: Despite his constant retorts that he is not a girl and his consistent usage of masculine speech, nobody in ''OSO'' other than his real life acquaintances believes him and instead assumes he is just roleplaying as an OreOnna. This is not helped by the fact that his real-life acquaintances always tease him by intentionally never support Yun when he insists he's a guy.

** He later gains the ability to make [[MagicalAccessory rings]] and [[AmplifierArtifact regular items]] hold enhancements, though the quality of the item determines what and how many hhe can place on it.

* MagicEnhancement: Yun primary purpose in battle is [[StatusBuff supporting others]] by using Enchancement Magic. She also uses it to increase her speed and strength while crafting or farming in order to get around strength requirements and get through it faster.
** She later gains the ability make [[MagicalAccessory rings]] and [[AmplifierArtifact regular items]] hold enchancements, though the quality of the item determines what and how many she can place on it.

* BloodKnight: PKs for the challenge

* OneHitKill: Knows the PK skill <<Killing Edge>>

* AnAxeToGrind: He is stated to have the Axe Sense in his character profile, although he is never actually shown fighting with axes in the novel proper. Presumably, he uses them for his woodworking instead.

Helps Yun to mentor two beginner players Raina and Al and eventually forms a guild, Fresh Green Wind, with them and serves as the guild master in volume 5.

!!'''Rainard'''

* AttractiveBentGender: Yun's avatar in ''OSO'', while based off his real body, is "enhanced" by the game system to appear even more feminine, resulting in a long-haired beauty.

* BornLucky: Yun always have a knack of getting rare drops from mobs and bosses. Sei sometimes is annoyed that she never really gets drop she wants while her little brother oftentimes get good drops instead.

** He eventually does get a katana-like kitchen knife, a Dismantling Knife - Blue Dancer, which can be wield with one or both hands.
* CassandraTruth: Despite his constant retorts that he is not a girl and his consistent usage of masculine speech, nobody in ''OSO'' other than his real life acquaintances believes him and instead assumes he is just roleplaying as an OreOnna. This is not helped by the fact that his real-life acquaintances always tease him by intentionally never support Yun when he insist he's a guy.

* DishingOutDirt: Yun eventually picks up the Earth Element Talent Sense as a supplement, partly because none of his acquaintances have it and partly because the spells it offers suits his solo play style pretty well.
* DudeLooksLikeALady: The reason why the ''OSO'' system misidentified him as female in the first place.

Magi specializes in smithing metal equipments in ''OSO'', and after the events in volume 3, establishes the Crafting Guild together with fellow crafters Cloude and Lyly and becomes its guild master.

* TeamMom: Acts as one for her crafting acquaintances, and later the Crafting Guild as well in her capacity as guild master. It is stated that her fellow crafters elected her as guild master precisely because her caring and amiable personality makes her a good public face for the guild.

One of the top crafters in ''OSO'', Cloude specializes in crafting cloth and leather armors, and also branches out to making cosplay costumes. He is a bit of a pervert, and has a habit of asking female players to model his creations for him, including Yun, much to the annoyance of the latter.

Cloude is one of the founding members of the Crafting Guild alongside Magi and Lyly, and serves as its sub-master.

* InstantCosplaySurprise: He would like to do this to pretty female players in ''OSO'' if given the chance. So far though only Yun and Lyly has been shown to be subjected to that treatment, and ''neither of them are girls''[[note]]Cloude, like everyone else, believes Yun is a girl though[[/note]].

* AnAxeToGrind: He is stated to have the Axe Sense in his character profile, although he is never actually shown fighting with axes in the novel proper. Presumably he uses them for his woodworking instead.

Yun's younger sister, Myu is a hardcore gamer and was a beta tester for ''OSO''. She is very thrilled when she learnt that her older brother is joining ''OSO'', and helped him out in the registration process. Her MinMaxing approach to playing ''OSO'' as opposed to Yun's casual play style means that the two of them actually tend not to play together, although she does frequents Yun's shop for his high-quality consumables. Instead, Myu usually plays ''OSO'' together with a party of five other girls of similar age, and is its nominal leader.

* HeroOfAnotherStory: Myu's path to prominence within ''OSO'' is definitely an interesting story of its own right, and she does in fact receives a spin-off side story centred around her point of view. Amusingly, her conventional combat-oriented play style means that she fits TheHero trope much better than her older brother Yun.

* InHarmsWay: Has a penchant of putting herself through incredibly difficult challenges in ''OSO'', such as trying to take on a boss monster in solo combat. This helps to refine her combat skills much more quickly than conventional LevelGrinding, with the added bonus of faster levelling of her Senses. Since such challenges are usually conducted at night, in the event that she got killed in-game, she would just simply log out for the day and let the death penalty naturally expires over the night.

One of Myu's party members, Lucato serves as the party's tank and is in fact the one that takes the actual role of commanding the party in combat. Her calm and down-to-earth personality serves as a {{Foil}} for Myu, although both of them are in very good terms with each other.

* {{BFS}}: Alternates between using a bastard sword (massive for her size) and a smaller long sword (with an optional shield) in ''OSO'', depending on the conditions in the field.
* GamerChick: {{Downplayed}}. ''OSO'' is in fact Lucato's first {{MMORPG}}, and she only joined the game because she wants to [[HeroicWannabe try being a hero]].

One of Myu's party members, Toutobi serves as the party's scout and is adept at disarming traps. In combat, her assassin-style Sense build enables her to dish out high damage stealth attacks, allowing her to be able to survive solo encounters like Myu, if needed.

One of Myu's party members, Kohaku serves as a rearguard support mage for her party. She specializes in Wind magic, and has a balanced Sense build overall. Her no-nonsense demeanor makes her the StraightMan in the party as she handily dishes out timely retorts against any wacky utterances.

One of Myu's party members, Rirei serves as a rearguard mage for her party. She specializes in Fire magic, and unlike Kohaku she has a much more offensive Sense build. She is known in her party for her (often) wild delusions, and is especially excited when Myu and Yun gets close to each other, much to the latter's embarrassment.

Yun's best friend in the real world, Taku is a hardcore gamer and was the person who introduced ''OSO'' to Yun. Like Myu, he was a beta tester for ''OSO'' and is currently one of the top players in-game. Taku is heavily dependant on Yun for schoolwork, although he becomes inordinately helpful to Yun while in ''OSO''. He generally parties together with a group of four other male and female players.

* CombatPragmatist: Has no qualms in wearing down his opponents in the [[PlayerVersusPlayer PvP]] Tournament by luring them into areas where other competitors are fighting each other so as to make them deal collateral damage against all of them.

* TheBigGuy: He is not only the party's tank, but also its most burly member as well.

Yun's older sister, Sei is an avid gamer and a former beta tester of ''OSO'' just like her younger sister Myu. She is one of the top players in ''OSO'' and serves as the sub-master for the guild 【Eight Million Gods】. Although she is usually calm and composed, she can get upset when the so-called "[[RandomNumberGod Greed Sensor]]" strikes and she is unable to get the rare drops she wants.

* MagicStaff: One reason why Sei is such a formidable player is because she is fully capable of defend herself in melee combat with her staff if her opponents manage to survive her barrage of Water magic and close onto her.

* SquishyWizard: {{Subverted}}. While her defence is still low compared to melee-oriented players, she is not helpless at all when forced into close quarters combat.

* HardDrinkingPartyGirl: Enjoys drinking in excess in her downtime in-game. She even dragged Yun down into a dungeon on one occasion to hunt for a RareRandomDrop in the form of a canned food as accompaniment for the alcohol!

A mysterious ''OSO'' player known as the "Material Merchant", Emily is in fact Yun and Taku's classmate in the real world. She is a solo player like Yun and takes great lengths to keep her identity secret, going as far as disguising her in-game handle as "Emilio" and hiding her appearance with a mask. She specializes in synthesizing unique crafting materials and fights with the aid of her hand-crafted golems.

* CassandraTruth: Despite his constant retorts that he is not a girl and his consistent usage of masculine speech, nobody in ''OSO'' other than his real life acquaintances believes him and instead assumes he is just roleplaying as an OreOnna.

* InTouchWithHisFeminineSide: The reason why nobody believes he is a CrossPlayer in ''OSO''.

The protagonist of the series, Yun starts off as a novice player of the popular VirtualReality {{MMORPG}} ''Only Sense Onine''. His real identity is Shun, an OrdinaryHighSchoolStudent with little interest in video games and who only started playing ''OSO'' at the behest of his best friend Takumi. Thanks to the game system mistaking his sex and an accidental mistyping on his part, his in-game persona is a long-haired beauty with a feminine-sounding handle "Yun".

[[folder:【The Eight Million Gods】 Guild]]

* YouGottaHaveBlueHair: Sei's DigitalAvatar has in fact light blue hair.

Emily's real name is Emiri Endo, making her the only character as of volume 6 that is depicted with a full name.

* ClosetGeek: She hides her interest in video games in school as she thinks it will spoil her image as a responsible class representative.

* HeroOfAnotherStory: Myu's path to prominence within ''OSO'' is definitely an interesting story of its own right, and she does in fact receives a side story centred around her point of view. Amusingly, her conventional combat-oriented play style means that she fits TheHero trope much better than her older brother Yun. She even has a spin-off story of how she formed her party.

* ThePaladin: Myu [[InvokedTrope invokes]] this with her sword-and-light magic Sense build

* CloseRangeCombatant: Does not have any Senses that allow her to deal ranged attacks.

The guild master of 【Eight Million Gods】, one of the largest guilds in ''OSO'', Mikadzuchi is also unsurprisingly one of its top players. She specializes in stick-fighting and enjoys a good fight.

!! Flein

!! Tobias

!! Rainard

A new player to OSO when the second batch of VR Gear came out. She and her twin brother were helped by Yun and Emily when they first start. She and her brother later joined the Fresh Green Wind.

!! Alphard

A new player to OSO when the second batch of VR Gear came out. He and his twin sister were helped by Yun and Emily when they first start. He and his sister later joined the Fresh Green Wind.

!!Ivan

[[folder:Yun and the Crafting Guild]]

* HeroOfAnotherStory: Myu's path to prominence within ''OSO'' is definitely an interesting story of its own right, and she does in fact receives a side story centred around her point of view. Amusingly, her conventional combat-oriented play style means that she fits TheHero trope much better than her older brother Yun.

[[folder:The Eight Million Gods Guild]]

Yun's older sister, Sei is an avid gamer and a former beta tester of ''OSO'' just like her younger sister Myu. She is one of the top players in ''OSO'' and serves as the sub-master for the guild Eight Million Gods. Although she is usually calm and composed, she can get upset when the so-called "[[RandomNumberGod Greed Sensor]]" strikes and she is unable to get the rare drops she wants.

The guild master of Eight Million Gods, one of the largest guilds in ''OSO'', Mikadzuchi is also unsurprisingly one of its top players. She specializes in stick-fighting and enjoys a good fight.

[[folder:Other characters]]
!!'''Emily/Emilio'''

A mysterious ''OSO'' player known as the "Material Merchant", Emily is in fact Yun's classmate in the real world. She is a solo player like Yun and takes great lengths to keep her identity secret, going as far as disguising her in-game handle as "Emilio" and hiding her appearance with a mask. She specializes in synthesizing unique crafting materials and fights with the aid of her hand-crafted golems.

Emily's real name is Emiri Endo, making her the only character as of volume 6 that is depicted with a full name.

* CoolMask: Habitually wears a mask that covers half of her face in-game.
* ClosetGeek: She hides her interest in video games in school as she thinks it will spoil her image as a responsible class representative.
* GamerChick: Is very well-versed in many video games.
* MookMaker: One of her specialties is her ability to craft wooden dolls and golems and use them in combat.
* OnlyKnownByTheirNickname: Most players who interact with her addresses her by her nickname "Material Merchant" only.
* WhipSword: Wields one as her weapon of choice.

!!'''Letia'''

An ''OSO'' player, Letia likes to roam around the game world with her menagerie of pet beasts. She first encountered Yun during the "Forest Camping Game" event in volume 2 after she passed out due to hunger and the latter offered her food. Since then, she crosses paths with Yun from time to time.

Helps Yun to mentor two beginner players Raina and Al and eventually forms a guild, Fresh Green Wind, with them and serves as the guild master in volume 5.
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* MookMaker: One of her specialities is her ability to craft wooden dolls and golems and use them in combat.

* NiceGuy: Yun has a very kind and caring personality almost to the level of an ExtremeDoormat. This almost becomes a problem for him in ''OSO'' when he frequently underestimates the values of the items he makes, until his crafting acquaintances advise him on their proper prices. Even then, he still limits the quantities of items he is selling, so as not to destabilise the in-game market.

* MakingASplash/AnIcePerson: Sei specializes in Water magic, and also Ice magic after she raised her Water Element Talent Sense to a certain level.