Is it a specific one you have in mind or what does "weird" entail?
Anything people find weird/overly kinky/sexual (porn one shots basically)
Taboo stuff. Exception to cheating (I hate it sorry).
Better than I could: https://www.mangago.zone/home/mangalist/1660787/
Shit. Like literal shit
https://myreadingmanga.info/shimesaba-isaki-dog-training-2-eng/
What the title say pls