History Deuteragonist / AnimeAndManga

** ''Manga/YuGiOh'': Jounouchi, according to WordOfGod, as a good chunk of the story follows his "journey". In the [[Anime/YuGiOh second anime adaptation]], [[TheRival Kaiba]] is made the deuteragonist and Jounouchi is the definite tritagonist, where Kaiba appears more prominently and more heroic than in the manga.

** Suzaku Kururugi. There is at least [[WordOfGod one interview from the creators]] stating that ''Code Geass'' was intended as a double narrative of Lelouch and Suzaku's stories. He even gets a spin-off manga called ''Manga/SuzakuOfTheCounterattack''.

* ''Manga/MissionYozakuraFamily'': Naturally, as a RomanticComedy action series, the deuteragonist is Mutsumi Yozakura, the new head of the Yozakura clan and the wife of series' protagonist Taiyo Asano. Although Mutsumi and Taiyo are somewhat forced into tying the knot via ShotgunWedding, the two of them are [[HappilyMarried absolutely head over heels for each other]]. Their relationship as a couple is just as much of a point of focus as the main plot, if not moreso, which heavily involves both of them. If one were to look for a tritagonist, the most obvious answer would be Kyoichiro Yozakura, Mutsumi's KnightTemplarBigBrother, who generally gets the most focus out of all of Mutsumi's siblings (In fact, he's pretty much the one who kicked off the entire plot by (unintentionally) forcing Taiyo and Mutsumi to get married.

* ''MissionYozakuraFamily'': Naturally, as a RomanticComedy action series, the deuteragonist is Mutsumi Yozakura, the new head of the Yozakura clan and the wife of series' protagonist Taiyo Asano. Although Mutsumi and Taiyo are somewhat forced into tying the knot via ShotgunWedding, the two of them are [[HappilyMarried absolutely head over heels for each other]]. Their relationship as a couple is just as much of a point of focus as the main plot, if not moreso, which heavily involves both of them. If one were to look for a tritagonist, the most obvious answer would be Kyoichiro Yozakura, Mutsumi's KnightTemplarBigBrother, who generally gets the most focus out of all of Mutsumi's siblings (In fact, he's pretty much the one who kicked off the entire plot by (unintentionally) forcing Taiyo and Mutsumi to get married.

* Starting from the Advanced Generation series onward, ''Anime/PokemonTheSeries'' isn't just about Ash Ketchum anymore. His female companions (May during the aforementioned AG saga, then later Dawn, then Serena, then Lillie, and as of now, Goh) also get their focus by having a quest running concurrently with Ash's.
** Dawn is notable for being mentioned in the Japanese title scroll (a brief summary of the gist of the show shown at the beginning of every intro) alongside Ash, something that neither May nor the female companions after Dawn got, until Lillie in the ''Sun & Moon'' series, reflecting how much focus Dawn had.
** Goh from the ''Journeys'' series is considered Ash's co-lead rather than a secondary companion like most of his friends. Their role in the show is that of partners rather than hero and sidekick.

* ''Manga/HellsParadiseJigokuraku'' tells the story of exiled shinobi [[KnightInSourArmor Gabimaru the Hollow]] trying to achieve an official pardon by recovering the mystical Elixer of Life at the mysterious island of Kotaku. Monitoring him throughout his journey is the story's secondary main character, [[TheExecutioner Yamada Asaemon Sagiri]], desperate to prove herself and make her own way in the world.

** One of the most unexpected cases comes in the form of Jewelry Bonney of the Eleven Supernovas and Bartholomew Kuma of the Seven Warlords. Both introduced as minor characters ''way'' earlier in the story and, despite some hints that both of them have a bit more going on than meets the eye, only make a couple sporadic appearances post-timeskip. Come the Egghead arc, however, both of them quickly shoot up to the Deuteragonist role. While the Egghead arc features plenty of other characters and storylines, at its core it's ultimately about the deeply tragic relationship between Kuma and Bonney, and the love both of them had for each other.

* ''Manga/HellParadise'': featured Sagiri as the Deuteragonist and arguably either Touma,Chobei or Yuzuriha as the Tritagonist.

** The longest-running and best known is Princess Nefertari Vivi of Alabasta, who tags along for the entire Baroque Works Saga. The ultimate goal of said saga is the liberation of her kingdom from the evil Sir Crocodile, so a good case can be made than thie journey is actually hers, and the Straw Hats are the means by which she can succeed at it.

* ''Anime/BubblegumCrisis'': Though Sylia leads the Knight Sabres, her role in the series is secondary to her subordinate, [[TheProtagonist Priss.]] Which is {{justified}}, since Sylia spends half her time [[BigGood operating behind-the-scenes to oppose]] [[MegaCorp the Genom Corporation]].

* ''Manga/ChainsawMan'': While the series protagonist without a doubt is Denji, the role of deuteragonist can be given to either Aki or Makima while Power serves as the tritagonist.