I feel there should be more post Bingge vs. Bingmei fanfics from Bingmei’s point of view.
He came upon another version of himself that, apparently, Shizun has met before???
The same Shizun who inexplicably threw Binghe into the Abyss only to mourn him immediately afterwards. Who was absolutely terrified of him in Jinlan City, and kept blaming him for everything. Who died for him only to pop up later in a replacement body Shang Qinghua helped him make. Who just so happened to know a great many things he really shouldn’t about the Holy Mausoleum.
I’m not sure what Binghe would conclude from all this (I doubt he’d come up with transmigration exactly) but you can’t tell me his Protagonist IQ didn’t come up with some very interesting, and fairly plausible, scenarios.