Listen to Me, Girls. I'm Your Father!

Segawa Yuta is a first-year university student. He lost his parents when he was little and was raised by his older sister Yuri. He has lived on his own since Yuri married a middle-aged man back when he was in junior high. One day, Yuri visits his apartment and asks him to look after her three daughters while she and her husband are away on a trip. He agrees reluctantly, but the plane Yuri took goes missing. To keep the daughters from being adopted separately by relatives, Yuta decides to take in all three girls. So begins the life of an odd family in a tiny apartment.