Being able to see you everyday bought something new into Tsukishima's life. Whether that was just another annoying person to disrupt him, someone to calm him down or just another face he'd have to see everyday, he wasn't sure. But that was at first. What he did realise now was that he wasn't going to let the mark you made on his heart fade. He would make you stay even if it meant him showing his vulnerability. Even if he had to show you a new side. A New Moon