Talk:Oni-Chan/@comment-37210617-20190117002309

It does not necessarily have to be a real sibling couple.

As we saw in Captain Hardrock, Luka is interested in Marinette. Then, in Frozer, he immediately subordinated his interests when he realized that Marinette is in love with Adrien. I can well imagine that he now behaves like a big brother to her. Who helps her, where he can, who protects her, if necessary.

And if he somehow fails with this, he could quickly become a "demonic big brother" with Hawk Moth's help - just "Onichan".

Maybe ...