FinishedTV seriesSpring 2014
One Week Friends
Comedy · Drama · Romance · Slice of Life
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FinishedTV seriesWinter 2023
ONIMAI: I'm Now Your Sister!
Comedy · Ecchi · Slice of Life
FinishedTV seriesFall 2012
OniAi
Comedy · Ecchi · Romance
FinishedTV seriesFall 2017
Our love has always been 10 centimeters apart.
Drama · Romance · Slice of Life
FinishedFilmSummer 2024
OVERLORD: The Sacred Kingdom
Action · Adventure · Fantasy
AiringFilmFall 2012
One Piece Film: Z
Action · Adventure · Comedy · Drama
AiringFilmSummer 2019
One Piece: Stampede
Action · Adventure · Comedy · Drama
AiringFilmFall 2009
One Piece Film: Strong World
Action · Adventure · Comedy · Drama
FinishedTV seriesFall 2008
One Outs
Psychological · Sports
FinishedTV seriesSummer 2010
Okami-san and Her Seven Companions
Comedy · Romance
FinishedTV seriesWinter 2021
Otherside Picnic
Adventure · Fantasy · Horror · Mystery
FinishedSpecialSpring 1993
Ocean Waves
Drama · Romance · Slice of Life
FinishedFilmSummer 1991
Only Yesterday
Drama · Romance · Slice of Life
FinishedTV seriesFall 2016
Occultic;Nine
Mystery · Sci-Fi · Supernatural · Thriller
FinishedTV seriesSummer 2019
The Ones Within
Adventure · Comedy · Drama · Mystery
FinishedTV seriesWinter 2022
ORIENT
Action · Adventure · Comedy · Fantasy
FinishedTV seriesWinter 2010
Omamori Himari
Action · Comedy · Ecchi · Fantasy
FinishedTV shortWinter 2017
OneRoom
Romance · Slice of Life
FinishedFilmFall 2016
Orange: Future
Drama · Psychological · Romance · Sci-Fi
FinishedTV seriesWinter 1998
Outlaw Star
Action · Adventure · Comedy · Sci-Fi
FinishedFilmSummer 2020
Omoi, Omoware, Furi, Furare
Drama · Romance
FinishedTV seriesWinter 2025
OKITSURA: Fell in Love with an Okinawan Girl, but I Just Wish I Know What She's Saying
Comedy · Romance
FinishedTV shortWinter 2014
Onee-chan ga Kita
Comedy · Romance
FinishedONASpring 2026
An Observation Log of My Fiancée Who Calls Herself a Villainess
Comedy · Fantasy · Romance · Slice of Life
Data: AniList