what episode does usopp leave the crew

In the One Piece series, Usopp leaves the crew in Episode 236. During the Water 7 Arc, Usopp challenges Luffy to a fight over the Going Merry, which is deemed unsuitable for sailing any further. After losing the fight, Usopp leaves the crew due to his insecurities and emotional reasons. However, his departure is relatively short-lived, as he and Luffy make amends after the Enies Lobby arc, and Usopp rejoins the crew.