Rebirth: the Strongest in a Different World

"Hey! Hey, I still have a lot of things I haven't asked yet." "It's not easy to be reborn. I never expected that I would be allowed to cause trouble in this world." I said depressedly "And why are they the undead? Why do other people's time travels have a lot of harems and come to me, so why doesn't it work?" I said while opening my pants. Found nothing. "There's nothing more I can say now," I sighed. "He didn't tell me, but I really didn't realize it. Now I am full of strength, my waist doesn't hurt, my legs don't feel numb, and I feel more energetic," I said happily. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.