Technically, since Fubuki is the Main Character, wouldn't it be Nagato having Fubuki's baby, and than dying in childbirth to cause drama?
A real...
The Japanese here is a pun between two homonyms Kaitai 解体 (to dismantle) and Kaitai 懐胎 (to become pregnant) Fubuki threatens to dismantle Nagato, but Nagato hears she will become pregnantI'm reporting everything to Mutsu!Surprise!?You don't mean, you can finally have my baby!?Gah...You're absolutely hopeless!I've had enough...Please accept my apologies.That's better.