Koisuru One Piece

• Ja Kanji — 恋するワンピース • Ja Romaji — Koisuru Wan Pīsu • Genre — Comedy • Creator — Eiichiro Oda

• Type — manga • Author — Daiki Ihara • Publisher — Shueisha • Imprint — Jump Comics+ • Magazine — Shōnen Jump+ • First — June 18, 2018 • Last — January 22, 2026 • Volumes — 12

• Type — ona • Director — * Yū Kamatani • Hazuki Omoya • Studio — Toei Animation • First — April 1, 2025 • Last — April 5, 2025 • Runtime — 6-7 minutes • Episodes — 5

• Portal — yes Koisuru One Piece is a Japanese manga series written and illustrated by Daiki Ihara. It was serialized on Shueisha's Shōnen Jump+ manga service from June 2018 to January 2026. It is a spin-off of Eiichiro Oda's One Piece manga series. An original net animation adaptation was released in April 2025.

A group of high school students with the same names as the Straw Hat Pirates end up forming a One Piece fan club. Throughout the series, parodying moments from the One Piece manga.

• Luffy Yamamoto • Ryōsuke Kanemoto • Nami Koyama • Ayane Sakura • Nakatsugawa Usoppu • Yuichi Nakamura • Sato Yoshioka • Akari Kitō • Biology Club President • Akira Ishida • Tsuchi • Megumi Han • Toriko Kurono • Takehito Koyasu • Narrator • Mahito Ōba

Written and illustrated by Daiki Ihara, Koisuru One Piece began serialization on Shueisha's Shōnen Jump+ manga service on June 18, 2018. The series went on hiatus on November 7, 2021, due to Ihara launching Protect Me, Shugomaru! in Weekly Shōnen Jump later in the year. It resumed serialization on April 10, 2025, and ended on January 22, 2026. Its chapters have been compiled into twelve tankōbon volumes as of January 2026.

An original net animation adaptation was announced during an AnimeJapan event on March 22, 2025. The series consisted of five anime shorts that aired on YouTube, Instagram and TikTok from April 1 to 5, 2025.