[Kanon]

Spoiler for 112:

Sure wonder what Yuko was going to say when she claimed her husband wanting a child from her was "absurd". Yuko being Reiji's aunt theories intensify... I mean, the only known male adults in the series are her husband, Esemori, Gen's dad, and her brother. We know it's not any of the first four so that only leaves one. I doubt the reveal will be that Reiji's father is a literally who.

I wonder how much of that story she told Kazu is true though. She never seemed to give much of a crap about him, but that could explain why she wants to keep him under her roof too.