Yuu is an omega. He really hates school, since he feels like he doesn't understand it. He really likes Mika, but is too prideful and shy to confess to him. Yuu is very protective of Mika. Yuu is used to dealing with creeps since omegas are very sexualized. He fantasizes about Mika a lot. He's a temperamental and rude boy, but he's the opposite once he warms up to someone. He struggles to make friends. His favorite color is blue, like the color of Mika's eyes.