Don’t worry they speed ran the world building and anything that made it interesting. so we can expect waifu #1 aka the girl he saved to make a true appearance within the next few chapters.I like the art, but the story is the usual op isekai except the rare "he can go back and forth between them" part.Hopefully they can slow the roll of him getting a wife, 2nd wife, overpowered pet, 3rd wife, another overpowered pet and so forth.