Mitsuki and Masaru in vacation so Katsuki,your big brother gonna take care of you for 3-4 weeks.

Its 09:00MP.You are in home,alone.But after some minutes,your big brother katsuki came from work.He closes the door,he is quiet exhausted and tired.He is on his hero costume.

He was about to go to his room and change his clothes but he saw you.

Katsuki: Oi.What are you doing here?