[Western Crossover] An Alien Falls from the Sky

Special note: I placed this novel in the danmei category after consulting with the editor. Please be sure to read the blurb and the author's note in Chapter One~ Jonathan, a successful transmigrator. Though he spends all day farming, fishing, and raising chickens and cows, and seems unremarkable compared to other transmigrators... He successfully married Martha! So there's nothing left to stop Jonathan from becoming a winner in life! Except, perhaps, an alien kid who fell from the sky wearing nothing but red underwear? Well, after all that hard work building up some property, his son needs somewhere to roam, right? Jonathan thinks raising an alien kid might not be so hard. Until one day... Kryptonian Kid: Dad, there's someone I like! Jonathan: Is it Lana from the neighboring town, or Ryan from Metropolis? Don't worry, your mom and I can pay for the wedding and the bride price... Kryptonian Kid: Neither. It's We... from Gotham... Jonathan: ...Kid, maybe you should just marry into his family instead? Content warnings: 1. The protagonist is a transmigrator, a man transmigrated into another man's body, and is paired with Martha, his official pairing and Superman's designated adoptive mother. They marry within three to five chapters, and this is a post-marriage BG relationship. BL-only readers, please take note. 2. The main pairing is SuperBat! SuperBat! They appear in the middle to later part of the story, but have plenty of scenes. BG-only readers, please take note. 3. Other side pairings may appear, including BG, BL, and GL. 4. Bruce is a playboy with plenty of ex-girlfriends and ex-boyfriends. Superman also has ex-girlfriends and even ex-boyfriends. CLex may be mentioned, for instance. Neither of them is inexperienced! I respect the canon and the possibility of any pairing having chemistry. Readers who only want mutually exclusive, first-time relationships, please take note. 5. That's all for now. I'll add more if I think of anything~ 6. The protagonist's pairing is the "main viewpoint pairing" and is also an official canon pairing. Based on the proportion of the romance plot, the "main pairing" is SuperBat/Superman and Batman. Please keep the distinction in mind. Theme: An alien lives on Earth under the guidance of his not-quite-normal human adoptive father