The male protagonist who traveled through time and became Saitama's neighbor is bound to the world travel system. Just when he thought he could reach the pinnacle of his life, he found that every time he returned from completing a mission in another world, the power he finally gained was not worth mentioning in front of his teacher. In order to become stronger, he trained in Dragon Ball Blast Star, went to Hokage to take Rasengan pills, but when he came back, he still couldn't escape the daily routine of being awakened by the discount advertisement in the neighbor's supermarket.
