Irie Naoki (husband)
Kotoko has liked Irie Naoki first year in highschool, at first Naoki thought of her as "annoying", but eventually he falls for her.During the first year entrance ceremony, Kotoko fell in love with Naoki, time passed by and she united all her corage to give him a love letter, wich he rejects. This rejects deeply hurts Kotoko. Later, when kotoko's house collapses, her father moved to his old friends house, wich was Naoki's dad. Lots of things happen to Kotoko during that time in irie's house. After some time kotoko found out about irie and he's contract marriage, and eventually kinnosuke (kin-chan) proposed to kotoko. When Naoki found out about this after picking her up, he kissed her and also askes her to marry him and she accepts, they eventually marry and he faces some challenges. At the end they had a beautifull girl named Irie Kotomi.