For 'Morning quickie', you need to walk into Lucy's room in the morning and interact with her to access it(the purple 'Actions' dialogue). As for 'Behind couch', interact with her on the sofa at noon(not afternoon) and do the same thing. It's probably locked behind a certain affection level though. Might also be locked behind event triggers. Can't remember. As for the clue, I'm assuming this is what you're talking about? Misdirection | Hero's Harem Guild Game Wiki | Fandom