Episode 1
Yamamoto Luffy and Koyama Nami, two students who have bonded over their One Piece-esque names, meet Usopp, a mega fan of the series. Assuming everyone loves the manga as much as he does, he forcibly recruits them to his newfound "Pirate Club", naming Luffy as its "captain".
Aired 01/04/2025EP 1 - Episode 1

2025
Koisuru ONE PIECE
The premise of this spinoff is about three high school students: a young male student, his girlfriend and a third wheel who is a One Piece fanatic. Their names are similar to the Straw Hat Pirates and the group form a fan club dedicated to One Piece.
(Source: One Piece Wiki)