「私の言うこと聞きなさい！」義姉ちゃん達と女装弟新くん ケース１ 新くんの事情

Main character lives with three sisters-in-law - eldest sister Shizuna with great body, cute Otaku and cosplay lover Momone. He is constantly dressed as a girl by his abusive sisters, and gradually more fetishes get revealed.

[From vndbreview]