Day 21: The One everybody ignores. That may be an exaggeration, but I chose Myra from Fear to Love. He's always been the type to fade into the background and make his presence scarce, but (and this is backstory, not exactly spoilers) when he met Nanoa (the thick chick from Day 8) he tried changing his image because she tended to date bad boys. But even after he started peacocking, he got ignored for a different reason: people were kinda embarrassed about his over-the-topness. But there's a legitimate reason why he tends to be able to mask his presence that he didn't become aware of until partway through sophomore year of high school. That is spoilers (but also not told in the main story) so I won't talk about it, other than to say he has natural hiding ability.
He joined the basketball team as a way to get Nanoa's attention more, though still no one noticed him. That kinda worked to his advantage, allowing him to steal the ball from opposing players (I know, Kuroko no Basket, much?) I thought it would be kinda funny to have a gag where in the middle of the game, someone on the other team is like "What are you doing? He's clearly dribbling it clear across court! how can you not see him, he's got piercings and a mowhawk for crying out loud!" XD
I also made him a bit prettier than he originally was here... dunno if I'll stick with this design or not. After I inked it, I had a hindsight 20/20 moment, but that can be edited later if I want.