Keigo Sakaki, a cool, smart man with glasses on, and Maika, an impertinent, cheerful young woman, are brother and sister with five-year difference in age, and they are not related by blood. Keigo is a star...

https://www.cmoa.jp/title/337839/

Original Webtoon: Ridibooks, MrBlue, Comico, Lezhin, Anytoon

Original Novel: Chapters, Volumes Original Webtoon:R19: Naver Series, Ridibooks, MrBlueR15: Naver Series, Ridibooks, MrBlue, KakaoPage

https://www.cmoa.jp/title/191811/

https://www.cmoa.jp/title/337432/

Original Manga

Nao who has been confessed by her friend Nozomi and refused. Nozomi who resented him requested a curse at the black magic agency site. Then the next morning, my body had become a girl! And huge breasts...