*In Sebastian's bedroom there's a poster of a character that resembles a Harvest Moon protagonist.
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*Even if you've already given Sebastian the [[Bouquet]], and the social Tab shows him as "Boyfriend", it might occur that he asks you if you are single.
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*On Fridays, [[Robin]] might say "I found an ashtray in Sebastian's room, and it smelled really weird. Should I be worried about this?". This could be a hint to Sebastian smoking pot in his room.