Mer sukuna who is egg bound bc he refuses to let the eggs drop bc they are proof that he has feelings for Yuji, and if feelings are getting involved he wants Yuji to drop eggs first. Being egg bound makes sukuna extra moody and aggressive, on top of him not seeing any sign of Yuji making eggs like he is (their bodies only make eggs when the love hormones are present). The thing is Yuji has also been dropping eggs like crazy but has been hiding them trying to baby trap sukuna, or at least getting a few kids that’ll soften the blow of sukuna not being clear about become life partners (Yuji is dumb but sukuna is also emotionally stupid).