Yes, Flora the Useless; just stay indoors get some cookery-lessons; while L&L go off for their puzzle-solving adventures! :-D SPOILERS <<< Flora needs more backbone. Emmy should give her Karate lessons XD
And no, this isn’t romance between Luke and the professor (thats downright gross). Theyre just showing how close friends they are. Heck, the artist even said that their relationship is like a father and son.