mc goes to a isekai then turns out he is a bad personish. He has a samurai sword and kills a lot and stuff. was Japanese I believe
Novel's title is Summoned Slaughterer, I believe. But u should follow Bad Storm's advice on enquiring about forgotten titles in the appropriate sub-forum.
Hello there, I think you'll be better off creating a thread than posting it here in the blog section. This place is kinda deserted... Here: https://forum.novelupdates.com/forums/im-looking-for.1017/create-thread