OOohhhhh...!!!! That's just the right isekai trash I like. OP from the beginning, but tries to hide it. But there is a trap fall. I hope he doesn't go totally stupid..."I'm not that strong.", "Was that me? No, I'm sure it was something else." *laughtrack* or "I'm now super nice and all heroy, but I build a harem around me, because I'm also too nice too say no, except when the girls want to fuck, then I say no, because I'm too scared to hurt any feelings."