Daiki Ihara began the Koisuru One Piece (Loving One Piece) gag manga on Shonen Jump+ on the same day that One Piece Koby ni no Kobiyama: Urifutatsu Nagi no Ōhihō launched last June.
The manga is a spinoff of Eiichiro Oda’s One Piece manga, and it launched on Shonen Jump+ in June 2018.
Several other One Piece spinoff manga were announced last summer.
One Piece celebrated its 20th anniversary in July 2017, and the anime adaptation is celebrating its 20th anniversary this year.