Maruo Nakano

Maruo Nakano is the stepfather of the Nakano quintuplets in The Quintessential Quintuplets (also known as 5-toubun no Hanayome). He is a successful medical doctor who runs a large hospital and is married to the quintuplets' late mother, Rena Nakano.

He has a strict, no-nonsense, and disciplined personality, often appearing distant or cold on the surface, with a strong emphasis on academic performance and rational evaluation (like test scores). Despite this stern demeanor, he deeply cares for his stepdaughters and takes his role as their provider and guardian seriously—he hires Futaro Uesugi as their tutor to help improve their grades and shows underlying affection for the family.