Komoritenka, a boy who has moved to a different world, became a "hero of the sacred sword" led by the saint Amelia in the city of Aoharu, where adventurers gather.
However, one of the important qualities of this brave man is a big problem! It must be chastity !! The "All Mankind Nasty Plan" by the Incubus King was activated. As a hero of the sacred sword, you must protect the world and your innocence!
I don't know if I'm really happy to protect the world, but for the time being, do your best, brave Tenka!