In this Isekai manga, whoever wins in Pv P battle gets to CLAP the loser

The protagonist is a 15yearold average Japanese boy. What does that mean He gets isekai d of course. He supposedly gets the worst skill in the realm called the copy skill. But we all know its OP , manga, recap, anime, manhwa, manhua, fantasy, harem, isekai, comedy, reincarnation, action, ecchi, shounen