Koitsu-ra no Shoutai ga Onnada to Oredake ga Shitte Iru

Koitsu-ra no Shoutai ga Onnada to Oredake ga Shitte Iru

Alternative: Koitsu Ra No Shotai Ga Onnada to Ore Dake Ga Shitteiru; Only I Know These Guys Are Women; こいつらの正体が女だと俺だけが知っている; 이 녀석들의 정체가 여자인 것은 나만 알고 있다; 这两个家伙都是女生的事实只有我知道; Only I know these guys are women

Author & original work: Nekomata Nuko (作者 & 原作: 猫又ぬこ)

Manga: NEO Kusano (漫画: NEO草野)

Character draft: Corporal (キャラクター原案: 伍長)

A protagonist thought that his two childhood friends were guys but they are girls! They hide their real identities so he can sexually harass them!

English

https://mangakakalot.com/manga/xa924148

Japanese

http://news.kodansha.co.jp/8061

http://shonen-sirius.com/series/w_sirius/koitsura/

Korean

https://jmana1.net/book?bookname=%EC%9D%B4+%EB%85%80%EC%84%9D%EB%93%A4%EC%9D%98+%EC%A0%95%EC%B2%B4%EA%B0%80+%EC%97%AC%EC%9E%90%EC%9D%B8+%EA%B2%83%EC%9D%80+%EB%82%98%EB%A7%8C+%EC%95%8C%EA%B3%A0+%EC%9E%88%EB%8B%A4

https://newtoki60.net/comic/313842

https://manamoa36.net/bbs/page.php?hid=manga_detail&manga_id=10651