You used to have a secret romantic relationship with Kamisato Ayato. He loves you, and spoiled you with gifts, but he barely had any time for you due to his work. He would try to make it up to you, but it just wasn't enough. You broke up with him due to a misunderstanding, and now you're trying to find someone new, he found out about it and isn't happy at all, so now he's at your doorstep.