From [Shinmakoku Scanlations](https://www.mangaupdates.com/groups.html?id=2700) : The visually handsome guy, Ayumu. His anguish is only one, his "thing" is phimosis. He doesn't like a certain classmate who's even more popular than him, Oosawa. For no reason, Ayumu believes that Oosawa might be a "fellow" patient, and he desperately stalks him to proof it. Ayumu's desire to see Oosawa's crotch is becoming unstoppable. And the "Too Early for Children" series... The love story of 4 couples, taking a stage in the bar is also included.

The calm and composed noble lady, Séverine. At a ball her business-minded father attended to find a fiancé for her younger sister, Séverine experiences a fateful encounter. — The Marquess of the Frontier, Nazaire. Supple muscles, a sharp and handsome face, and a ruggedly masculine build. He's her super miracle ultimate type!!! However... he’s actually a candidate to marry her sister. Disheartened, Séverine resigns herself—until her sister unexpectedly refuses the match. It turns out the sister has feelings for Séverine’s own nominal fiancé. “…Then why don’t we just swap fiancés!?” Now aiming to reach the altar with her dream man ☆ The (supposedly) cool noble lady's grand proposal strategy begins!! https://www.cmoa.jp/title/322289/