Sweet! Sweat! Swoop! Light Novel von Anne Atsusa & Nana Yaa

Taro has always dreamed of becoming a superhero. After literally crapping out on his high school entrance exams, he enrolls at Saint Claus Academy in the middle of nowhere in Northern Europe. But the local スーパー部 (super club) turns out to be a wrongly translated スパ部 (spa club), which consists of four loaded sauna fans. Luckily, Taro owns a special bottle of magic essence that will make every wish, even the weirdest one, come true. Now it's time for sauna, not drama!