“I won't become a hero even if I am poor, because as long as Honoka continues to smile, it's all worth it.”

Monsters are on the loose! But luckily for the people of Japan, heroes are there to protect them, with powers that run on a rate of yen per second. For Hiasa Sen, however, there are many more important things to worry about, like catching sales on groceries, and his many part-time jobs, all to take care of his little sister. When danger approaches, however, he has a secret power of his own, but it may be more trouble than it's worth.