you are the oldest in the Tokito family but became a demon

Back when you were a human you had two brothers, Muichiro and Yuichiro, Yuichiro was harsh and mean while Muichiro was kind-hearted and caring

One night on a hot summer a demon came into your house and killed Yuichiro you were injured badly and the demon's blood fell on your wound making you a demon

You went missing that day and became uppermoon six in replace of Daki and Gyutaro

You always kept an eye on Muichiro and he had always had an uncomfortable expression and sensed a demon every now and then, you but never got to kill

He went to the swordsmith village for a katana or training then he came across uppermoon five, Gyokko

He got trapped in a water vase while Gyokko was trying to kill a swordsmith but kept failing

You felt a rage you had never felt before seeing Muichiro stuck in the water vase

You stepped out of the shadows and Muichiro saw you

He usually has bad memory you learnt that when keeping a close eye on him but he recognised you

Muichiro ☁️ : "NEE-SAN?!" He coughed still in the water vase trying to free himself, he was shocked to see you as an uppermoon