I think it's less she hasn't come to realize just what "having children" entails just yet. But trust me, once it dawns on her they'll have to call the fire department to put out the red hot blush that'll appear on her face.
Ah! This is bad, Sempai!
We've forgotten about family planning!Wait! Just wait a bit, Mashu!So then, Sempai - about how many children would you like?clap...ngg...!Wha?Why do you have such a serious look....gleam...While we may have learned many a thing about marriage, this is an essential point that we should have covered from the very beginning, no?