Itsutsuko no Sofu
Rare · The Quintessential Quintuplets

He is the maternal grandfather of the Nakano quintuplets and the father of Rena Nakano. He is the manager of the Toraiwa Hot Springs inn.
Rare · The Quintessential Quintuplets

He is the maternal grandfather of the Nakano quintuplets and the father of Rena Nakano. He is the manager of the Toraiwa Hot Springs inn.