Yuuma Tsugari is an ordinary high school student whose family runs a public bath house. He leads a peaceful, uneventful life, but all that changes when a beautiful woman from another world appears before him, certain that he's the hero she's been searching for! Sure, he's no hero, but how can he refuse such a beauty...!?

Life at Tsugari Bathhouse, a small public bath in Shitamachi, has finally returned to normal-or so Yuuma thought! Naturally, strange visitors from another world are invading! How will Yuuma react upon meeting our new heroines-a gentle, holy dragon girl with a bottomless pit for a stomach, and a demonic dragon girl who's a somewhat good person!

The hits just keep coming for Yuuma, as a "slightly racy present" arrives for Alfin and Lavinia from another world, and inside lies a secret capable of altering the fate of the world...! Don't miss the thrilling conclusion of this pulse-pounding (in more ways than one) fantasy!

Ordinary (?) high schooler Yuuma Tsugari possesses the power of both the hero and the demon lord, and so far, it's caused him nothing but trouble! Frequent visits from otherworldly guests are one thing, but now, the princess's younger sister and the Demon General are at each other's throats, and their rivalry's just getting started! Will Yuuma ever be able to have a normal life again?!