This is Lust. He has to face discrimination every day because of the fact that he's gay. Because of the abuse he faces often, he starts to become depressed and hears voices in his head. He tries hard to overcome this, but sometimes it gets to him. The red writing represents the voices in his head. The song fits perfectly for him because he's often called a sick person, he tries to wear his title with pride, and the song could represent a voice in his head. He's also a social media addict Xp
Credit to @Dovenshiro for the character and idea, and @Jilly65 for the CC and line art.