Undertale

(Potential deal-breakers: There is a female lead; neither lead is particularly powerful; there are other transmigrators; some details involving time travel aren't entirely consistent; and the early pacing is slow. If you're fine with all that, read on!) AU Name: LD! Undertale…

After escaping the Octopus's control, Killer Sans decides to travel the multiverse, making friends in all sorts of worlds and saving other timelines that share a fate much like his own. From the seasoned Murder to the enigmatic ULB, and even the eerie, terrifying Sanstrosity…