The bond between Kotaro and his same-floor neighbours Karino and Mizuki grew stronger thanks to his willingness to repay them for what they do for him. The law firm employee, Kobayashi Ayano, has now met Kotaro and a small part of his story has be unveiled to us. In the next episode, a new male character will come to knock on Kotaro's door and will greet him with a smile... Who could he be? (Source: Annie at MyDramalist)