Oof nobody in our group got the reference I think. Welp so we decided to do something random for a last page (and so someone suggested Mario stuff so eh.) Shame on us.
No need to feel bad. That was a high IQ reference~
@Perlen297 Well unless we have the next panel with Rin only sleeping with Ena we can't be certain it's NTR. Right now the interpretation is dependent to the viewer.