Comments of chapter undefined of The Strongest Assassin Reincarnates in Another World

I feel this story would have made sense if he wasn’t reincarnated. He acts like a inexperienced kid! Not a former skilled assassin. He loses focus constantly, lost in his thoughts and ignores his surroundings.he talks WAY too much, he too trusting, and naive. If he was just a abandoned kid, his action would fit the narrative better