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Lettered Sequel

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Suddenly, Z.

"Z is the final letter of the alphabet and thus the most prestigious."
Ichiro Mizuki, Mazinger Z theme singer

Normally, to name Sequels you just simply add a number or some words, so the sequel of Foomovie will be titled Foomovie 2? Wrong, it's Foomovie Z!

This trope is a title naming convention for sequels, adaptations, or work expansions of a franchise in which they just add a letter or two to set up the name. Sometimes the titles will end in a rather cool sounding letter such as Z or X (or both). The letter sometimes stands for something meaningful and relevant to the plot, or just being thrown at random until the creator explains what it means.

This practice is commonly seen in Japanese works because they use different writing systems and apparently combining kanji or kana letters with an alphabet letter will bring "X" Makes Anything Cool into a new height. Alphabets are also pronounced in more literal way in Japanese, making it sounded more badass, such as Ekkusu (X) and Zetto (Z).

It should be noted that a title ending in roman numerals is not this trope. Nor is a title that just happens to end in a letter, such as Malcolm X and World War Z. It has to be the sequel or adaptation titles in which the work or franchise with the original title was released first.

In many video game titles, it commonly overlaps with Super Title 64 Advance for the titles that end in "DS", "U" or "X". Related to Oddly Named Sequel 2: Electric Boogaloo, "X" Makes Anything Cool and Stopped Numbering Sequels, not to be confused with One-Letter Title.


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    Anime and Manga 
  • A Certain Scientific Railgun S and A Certain Scientific Railgun T are the follow-up seasons to the popular A Certain Scientific Railgun staring Mikoto Misaka. Funnily enough, sister series A Certain Magical Index used Roman numerals for its second and third seasons.
  • The season sequels of the Dragon Ball anime series are titled Dragon Ball Z and Dragon Ball GT. The protagonists are often referred to as "the Z Fighters", but what the Z means or why they'd need a group name for a loosely affiliated group of friends and rivals is never explained within the show.note  "GT" stands for "Grand Tour" according to the company.
  • The direct sequel of Getter Robo, Getter Robo G.
  • Gundam:
  • The second season of Haiyore! Nyarko-San anime is called Haiyore! Nyarko-San W, as a reference to Kamen Rider Double, while the OVA conclusion is tiled Haiyore! Nyarko-San F, with the F standing for "Final."
  • The second season of Himouto! Umaru-chan is called Himouto! Umaru-chan R.
  • Mazinger Z is an inversion; it is indeed a part of the whole Mazinger franchise, but it actually is the title of the original manga that started everything.
  • The eleventh movie of One Piece, One Piece Film: Z. Named after the initial of the main antagonist, Zephyr.
  • Powerpuff Girls Z, the anime adaptation of the western series The Powerpuff Girls (1998), as opposed to the original's Chemical X, they use Chemical Z.
  • Sonic X, the adaptation for popular video game series Sonic the Hedgehog from a story arc in Sonic Adventure with Chris Thorndyke.
  • Saber Marionette J is followed up by Saber Marionette J Again, Saber Marionette J to X, Saber Marionette R and the manga-only Saber Marionette Z. The letters are the initials of the places where the main characters are located: J stands for Japaness which is based on Japan, R is for Romana which is based on Rome, X means Xian which is based on China, and Z is the oddball as it's the initial of a new starring character, Zero. The first series (J) is followed up directly by J Again and then J to X, whereas R and Z are distant sequels.
  • Sailor Moon has Sailor Moon R (the second season) and Sailor Moon S (the third season). The letters stand for "Romance" and "Super", respectively. In fact, "S" is actually pronounced "Super", as evidenced by the eyecatch and various printed materials (which in turn makes the subsequent season name, SuperS, fall into Department of Redundancy Department).
  • The Slayers anime's fourth season is called Slayers Revolution. The fifth season (which is just Part 2 of the fourth) is called Slayers Evolution-R. The reason why the R was moved from the front of the word to the back is not explained.
  • A spinoff of School Rumble revolves around Harima in a series of alternate stories is titled School Rumble Z.
  • Symphogear did this for each of its sequel seasons. Season 2 was called G, Season 3 was GX, Season 4 was AXZ, and Season 5 was XV. The exact reason for why the seasons were named this way is known only to the creators.
  • You Are Being Summoned, Azazel has the second season aired in 2013 under the name Yondemasuyo, Azazel-san Z.
  • Yu-Gi-Oh!'s manga adaptation has Yu-Gi-Oh! R, while the first Sequel Series to the anime goes by the name Yu-Gi-Oh! GX.


    Live-Action TV 

  • AKB48 has the sub-group for celebrating Natto Day named Natto Angels. In 2010, however, the group had been replaced entirely different members save for Miyazaki Miho, and changed the name into Natto Angels Z. The entire 48 Family also spawned a handful of team units based on their original group such as Team A, Team K and Team B (for AKB48), Team N, Team M and Team BII (for NMB48). There is an one-shot joint unit from the family named Team Z.
  • English-Irish pop group Liberty X originally went with the name Liberty after being formed from a TV talent show's runners-up. They changed it after received a legal challenge from another band with same name.
  • Idol group Momoiro Clover became Momoiro Clover Z after their lineup change because the sub-leader stepped down.
  • After six years of hiatus, the subgroup Petitmoni of Hello! Project went active again with a new concept and name as Petitmoni V.

    Video Games 

    Real Life 
  • Many Honda and Yamaha motorcycle lines love this, such as Honda Supra (manufactured in 1997) into Honda Supra X (manufactured in 1999), and also Supra XX for its manual version and Yamaha Jupiter (manufactured in 2001) into Yamaha Jupiter Z (in 2003).
  • The early lines of Mac computers:
    • The original Macintosh was replaced with (among others) the Macintosh XL and the Macintosh SE.
    • The Macintosh II spawned the Macintosh IIx, IIcx, IIci, IIfx, IIsi, IIvi, and IIvx. The letters didn't carry that much meaning.
  • Microsoft Windows
    • Microsoft has Windows Me, wherein "Me" stands for Millennium Edition. It's the last of the MS-DOS based Windows 9x line of operating systems, where the names were appended with the release year instead (1995 and 1998 respectively).
    • The next ones were the Windows NT line, wherein NT stands for the Intel i860's codename, N10. It was later expanded to mean "New Technology" for marketing purposes.
    • The last is Windows XP, wherein "XP" is a shortening of the word "experience" so as to highlight it's enhanced (at least in comparison to the more business/company oriented Windows 9x line of operating systems) user experience.
  • Sony Xperia smartphone series have Xperia S, Xperia U, Xperia P, Xperia SL, Xperia T, Xperia TX, Xperia J, Xperia V, Xperia L, Xperia E, Xperia C, Xperia M, and the best among them, of course, Sony Xperia Z.