Here comes the DRAMA. We know how this will shake out ... He helps her (Just WHY bro), She develops feelings (I mean it's THE FUCKING MMC magic), Mari finds out (she HAS to because DRAMA), and then the author can drag this on for another Volume or two.
On a related side note ... I think I understand the MMCs real problem/issue ... wait for it ... He's a Eunuch. i think he is delaying the inevitible with Mari-Noona finding out that he can't actually get it up. I can't believe that I'm saying this but ... poor Mari-Noona. She just wants the D but the only D she will actually get is the DRAMA.