The trope a mature person becomes a parent figure to a child that eventually will fall in love as an adult with his/her caretaker... So the MC basically raise a child that will marry them... I don't know about that...(⊙…⊙) Who in its right mind wants to make love with his own adoptive/foster parents???
Another example from the past: Usagi Drop and Hana To Akuma...
The trope a mature person becomes a parent figure to a child that eventually will fall in love as an adult with his/her caretaker...
So the MC basically raise a child that will marry them... I don't know about that...(⊙…⊙)
Who in its right mind wants to make love with his own adoptive/foster parents???
Another example from the past: Usagi Drop and Hana To Akuma...