Hmmm, I like it but..

It's kinda annoying when when an isekai MC has a particular background and skill set, but it never comes up again in the story. Like what's the point of making him a Yakuza if you're just gonna make him a weak damsel-in-distress that needs saving every time? Might as well make him a random college student or something and the story would still progress the same way..