Cast: Zika

 
I couldn't believe what happened before my eyes."Sister, what is 'this'?""It's your new friend, you said you needed a new friend no?"One day my sister picked up a man.It's astounding to just "pick up a man", but the more shocking fact is that this man...In a palace battle, he lost his memory. By day he was a child but by night he was an adult man."I wish I was always in pain""Huh? Why?""Because Amy is always by my side"Why is this guy dangerous?In the morning, he's a cute and lovable puppy...

This is a story about a girl who was dispatched as a sitter to take care of the last remaining dragon in the human world, an alcoholic, hikikomori, tsundere dragon.