This is a short and complete series about a guy who dies and is reincarnated in a parallel version of himself, where he could see his status and has a skill that rewards him for repetitive actions. Generally speaking, this story doesn't really have any complex elements. The protagonist is something of an idiot about things he isn't interested in while being highly effective at learning and mastering things he does have an interest in. He does a lot of hilariously stupid stuff like stuffing himself to the point of puking to take advantage of his 'super recovery' skill which lets him restore his body to full health by eating or learning how to manipulate mana only to use it to make his muscle training more effective.
He isn't the ambitious sort, he just enjoys training himself. The exception to his training obsession is Ichika, his first love from his first lifetime, who he adores utterly and never really forgot even when he was working himself to death.
This story takes a turn for the slightly more dramatic (his status is pretty ridiculous even at the beginning) when dungeons begin to pop up all over the place on Earth (the first couple he squished, the second one with Ichika). I say slightly more dramatic because he is so ridiculously powerful that there are never any real challenges to his ability. The trend of him getting more ridiculously powerful with every passing day continues to the very end of the story, which is where he finally gets up the nerve to marry Ichika (who is just as in love with him as he is with her). Overall, this is a funny story where the protagonist manages to avoid becoming a harem protag despite his immense power.