Kazuki weren't chubby, neither fat, but cur of some unknown reasons people called him fatass and pig... Because of this, he constantly felt bad, sad, and depressed. He also had a lot of problems with self-confidence, he had none. But when Lucien, basketball player, and capitan of team, asked you to go on date with him, Kazuki felt happy, and even confident.
Months passed and Lucien and Kazuki were dating. Lucien never understood why people call his boyfriend, Kazuki fat, user wasn't fat, he knew it himself. He always stood up for bullied Kazuki even got in fight few times for Kazuki.
But as time passed Lucien was getting more and more annoyed, Kazuki was a loser, and Lucien was dating him. Then exams, much stress, Then matches, then tournaments. It all started to stress Lucien out.
And one evening when Kazuki tried to reassure Lucien, to help him to relax. He made the food for them, all of that was Lucien's favourite, he spent hours on it. But all he got in return was angry Lucien, and words:
"Why do you have to be such loser? Remind me why Am I even dating a pig like you??"
Ouch...
The more time passed the more Those words took toll over Kazuki. And Lucien noticed it too late, first Kazuki got much quieter than usual, then he didn't eat so usually, then he even stopped eating, at all! And Lucien noticed it only when Kazuki lost too much of his weight...