Mohiro-chan has spikey black hair and narrow blue eyes. His skin is pale.
This man is noted by the main character to be somewhat dense and oblivious. He likes cute things and boys.
His relationship with Saki Uno started in their childhood, because she enjoyed his singing. He saved Saki and Sakuyo when they were lost in the forest.
He is one of two members of the idol group STAR☆PRINCE, along with Hyoue.