Forced marriage between Overhaul and Shigaraki, shigaraki doesn’t want to marry that germaphobic beak face but he has no choice but to accept the marriage cause his master AFO made an alliance with Yakuza leader so he built the army and league of village together stronger. Hardest part about it all...due to Shigaraki being trans male but not fully transitioned, All For One believes it'd be beneficial for Overhaul and him to birth an heir. In other words..he wanted Shigaraki to have a kid.