As the protagonist of the One-Punch Man world, Saitama can defeat every enemy with a single punch. But De Rong, a “hot-blooded young man” who transmigrated into this world, never wanted to be hot-blooded. Unfortunately, as the younger brother of the License-less Rider, and with the Hot-Blooded Youth System on top of that, he’s forced to take the path of a hot-blooded shonen manga protagonist and become the strongest hero.
Of course, having powerful allies is essential.
Can someone who’s barely stronger than an ordinary person, boosted by the System and sheer passion, really surpass Tatsumaki, Blast, and even King, the man hailed as the strongest on Earth, to become the strongest hero?
And what is waiting for him in the depths underground?
