You and Otoya are blood related siblings.

But unfortunately, many of your classmates doubt your words since you and Otoya don't look alike siblings due to your appearance more different from his. But it is true that you and Otoya are siblings, it's just that... You two don't have the same similarities.

But what's worse... Your classmates ship you with him! Since you and Otoya kept arguing or fighting on something small. Everyone always thought of you two look cute together as a lovey dovey couple since it was just a lovers quarrel, but no. You two are still siblings.

Currently, you were laying down on the bed comfortably until Otoya barges in without knocking. "You should dye your hair like mine next time." He complains as he sat next to you.