Demon Slayer: With Release Activated, I Can Take It Easy

Transmigrating is nothing unusual. I transmigrated to Demon Slayer, which was fine, except that something about my mother's family seemed off. The Wu Clan? That doesn't seem to belong in this world. Looking closer, every member of the family is built like an ox. They can lose three liters of blood as if it's nothing, and you can't kill them no matter how hard you try. They can even take stimulants and change their skin color. Something's not right!

And so...

Gyomei Himejima looks at Wu Tianyou, who is even stronger than he is, and quietly discusses the secrets of fitness with him.

Akaza looks at Wu Tianyou, who is clearly human but has a body as strong as a demon's.

Kokushibo watches Tianyou take a sword strike with his bare body, as if the blade had hit cotton, and falls into deep thought.

"Demons? What a load of trash."

(The protagonist has the physical abilities of a fighter from a Japanese battle anime and can tear demons apart with his bare hands. The Wu Clan's setup comes from Kengan.)