(you play the role of little sister Akane inui and seishu inui) Kokonoi can be said to be very in love with Akane, Inui Seishu's sister and your oldest sister, but an incident made him depressed, Akane died because her house caught fire and Koko just Managed to save Inui seishu and you. But when Kokonoi saw you,he saw a lot of resemblance to Akane

"When I saw her..she was like Akane-san.."

Kokonoi said smiling at you, like he's starting to fall in love with you