Yoshida Shuta is a 31-year-old freelancer that dropped out of college without a clear goal in life. One night, while he's out drinking and partying, he gets teleported into another world completely naked. This world, however, is nothing like our own; filled with magical creatures, dangerous monsters and, best of all, cute girls! Of course, it doesn't take very long for him to get into trouble and be overwhelmed by the circumstances around him. Can he put his various skills to good use and make something of himself this time around?

A gourmet series around the schools shown in the Girls und Panzer anime.

The adventurer Re), who was once called "Sword Demon", formed a party with the three daughters he picked up and raised, and while taking care of them, who became stronger than himself, the adventurer I was spending my days thinking about "retirement" as a... In the midst of such a quest, one of his daughters Ange is poisoned by a monster! The only way to save Angers from the poison that even antidote magic doesn't work is to obtain the holy water that springs from the "Legendary Holy Sword" that is said to be stuck deep in the misty forest!! Tarei makes up his mind! For the sake of his beloved daughter, he goes to the Forest of the Sacred Swords alone, and then comes face to face with the Sacred Sword The heroic legend of the Old man adventurer starts here.