Mushoku Tensei - Isekai Ittara Honki Dasu

A 34-year-old NEET otaku is expelled from his home by his family. Lacking attractiveness and resources, he realizes he has reached a dead end in his existence and comes to the understanding that his life could have been significantly improved if he had made wiser decisions in the past. Just as he was drowning in regret, he witnessed a truck speeding towards three high school students in its path. Summoning all his strength, he attempted to save them and ultimately got struck by the truck, swiftly ending his life. When he next opened his eyes, he found himself reincarnated into a realm filled with swords and magic as Rudeus Greyrat. With the chance to start anew in a different world, Rudeus resolved that, "This time, I will truly live my life to the fullest without any regrets!" Thus, the adventure of a man eager to restart his life begins.