The day is unusually bright, not suiting the dark clouds surrounding his heart. He paces outside the mediocre grey building nervously. How is he going to get inside and apologize?
Kawamoto Ren has two close brushes with women. The number of women he has kissed is three -- Rie, Nina, and now, Chiyo. He's not proud of kissing three women though.
Rie was his first love. Nina was someone who has left an impact on him. He felt something for Nina, but he's sure that it wasn't 'love' for sure. Still, he thinks of her fondly, though Nina kidnapped him once.
Where is Chiyo in all this?
He doesn't like her. The woman is colder than the glaciers on the north pole. She knows no respect or morals. Of course, why would she come to his apartment in a drunken state? When he's drunk, he goes to Kamiyama's house sometimes.
But Kamiyama Kiyohira and Rie are his closest friends. It's natural to raid one's best friend's place occasionally.