On ur プロフィール page あなた cn click on Clubs. Then find the club u wanna get out of and underneath it it will ask if u wanna get out of the club so u click yes
go to your profile,go down to your クラブ and click on もっと見る clubs, あなた find the one あなた want to leave and click unsubscribe. pick yes to leave that club.
u go back to the cataroy that u picked and click on the thing that u clicked to 登録する an it will say are u sure that u want tp undo an press yes and u wont be with that club anymore