The MC dies due to a conflict between gods and after being revived, he begins a long journey through different worlds and fighting against other reincarnated people and gods, building a big family and a big empire. ( Note: In all the worlds the MC travels to, polygamy is legal, it is not common or something that everyone participates in, but it is not something the MC has to justify. ) First world: Sekirei. second world: highschool of the dead. third world: BTOOOM! fourth world: in another world with a smartphone. fifth world: highschool DXD. Join my patreon, patreon.com/Risus_25_Arck if you want to read 15 advanced chapters
(Translated with google translator) To sum up, he is the typical reincarnated boy with a harem system, which needs him to form one and f*ck his harem, the protagonist chooses to go to the world of Sekirei to get girls in an easy way with which he can increase his level, but the guy is so moral that he refuses to have more than one Sekirei. After a mental battle and with the help of his Sekirei he decides to "save" another Sekirei to enter his harem. I really liked the development of the story but with respect to the protagonist, he presents a huge ego, which is shown by thinking too favorably of himself, he hints that he is a wild card that Minaka must take care of but the only thing he does in the whole plot, is having s*x with his first Sekirei and having moral dilemmas by not wanting to get more Sekireis. He has knowledge of the Sekirei world but in the course of the plot he does not make plans or strategies to deal with the Sekirei plan, but he seems to want to stick with the plot and have Minato be the protagonist. Regarding his Sekirei, Yashima. The author seems to want her to have the mentality of a normal human instead of being an alien who is brainwashed by the MBI, since in the canon the mentality of a Sekirei is in favor of her Ashikabi having many Sekireis, as according to her culture means that her Ashikabi is very powerful and according to her perspective, it should be something normal and morally acceptable in her culture.