Nana Morii is an idiot.
Above.
What is a moron? Hey! ! !
In short, his life revolves around his sister 360 degrees, and his mind is full of her sister in various positions (hey!). He is a crazy person.
Nana Morii, who is in her twenties, is naive, clumsy, and doesn't know how to restrain herself, so she falls crazily in love and throws herself into the fire with all her strength. If you are injured, you will pitifully show the wound to your sister. If the other person doesn't appreciate it, you will continue to be pitiful and wag your tail again. If that doesn't work, wag your tail twice!
Finally one day, her sister was willing to accept her, showing her extremely gentle side.
So she stopped being polite and sharpened her teeth.
Who is a puppy? She is a wolf.