Sasuke's Epic & Redemption

Two years after the 4th war, Sasuke still seeks to learn more about the Otsutsuki by searching the different dimensions of Kaguya while atone for his sins. Trying to create a portal to another dimension, things don't go as planned... This fanfic is a crossover between Genshin Impact and an OC world (maybe more later, propose), the primary world remains Genshin Impact but there will also be OC content although this is not the main topic. Otsutsuki will appear later. Semi-Evil Sasuke (not Boruto's with a only nice guy). No lack of Chakra, of course... Maybe he'll do a ride in ToG (Tower of God) because it's a universe I love, maybe Solo Levling too (PS: the anime trailer is amazing). Harem Tag, less than 4 girls. Putting on a harem for Sasuke is already kind of weird, but it will be more objectively than sentimentally (not heartless either, but that wasn't the original goal). Even if it's a Harem, the Main Ship : Sasuke & Ei. These characters have a lot of resemblance, even though one was vengeful and the other longing for an eternity. No need for more detail if you know the two characters, even if it is not, everything will be explained. 1k-2k per chapter, I'll post if I want, nothing at all if I'm lazy. To see if I wouldn't stop along the way knowing the lazy that I am (I assume it). Don't expect anything amazing, I'm just a new hobbyist writing just for fun. I will try to do my best to bring the personality as close as possible to the original.