One day Toto, a human, founds a girl of the Lamia tribe that was lying down from serious injuries. The girl, Titi, was atacked due to human's prejudice that Lamias are man-eating evil creatures. Toto saves and gives shelter for her.
Even though Titi's wounds have already been healed, she still wants to stay by Toto's side.

Note: A renewed version of this manga was released on Dec 31, 2017 at Comic Market 93