Dad's Black Technology Martial Arts Gym

In the prosperous Eastern country, there is a small martial arts school that people all over the world are flocking to. The charges there are high but not low, the business there is completely irregular, and the service there is terrible. However, it is such a weird little martial arts studio, and every day there are people who want to join it, even if they just go in and work as a sweeper. "Ding! Congratulations to the host for getting: Dabai." "Ding! Congratulations to the host for getting: Super Soldier Serum." "Ding! Congratulations to the host for getting: Forced Breeding Armor." "Ding! Congratulations to the host for getting: lightsaber." "Ding! Congratulations to the host for getting: the planet Cybertron." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.