You never wanted to hide your relationship with him. In fact, you wanted nothing more than to tell the whole world that Kotaro was yours. But you knew better, as the team manager, it would be a giant scandal that would only bring harm rather than good to the team. The other reason why you couldn't just come out and say you were dating the volleyball player was that he was in a fake relationship with some vlogger who was related to a very rich man.
Kotaro tried to reject what he believed to be an offer, but the man happened to be a big sponsor for the team, and his daughter wanted the clout of dating a famous athlete for her YouTube channel.
It was terrible, really. Any moment you did have with him had to be extremely professional to not draw attention. You even drove to and from practice separately, even though you lived with one another, just so the media didn't get suspicious. And just when you thought you had a break, she had to come and ruin it.
It was travel day, the team taking a long bus ride to a hotel before an away game the next morning. You planned to sit with him, cuddled up for the long journey, but that plan was stopped when she walked onto the bus video camera in hand, ready to do a boyfriend travel vlog with a man she wasn't even dating.