* FridgeHorror: Not only will Bosco likely outlive Makiko by centuries, she also needs to stay a virgin for him to feed on her blood.
** FridgeBrilliance: On the other hand, limiting himself to feeding only 4 times a year could potentially shorten Bosco's lifespan, given it's already made him anemic and has left him without much of the vampiric enhanced strength he'd have if he fed normally.
** Alternatively, assuming Makiko's willing, he could always turn her. But it doesn't seem like the sort of thing he'd do, since he was [[IJustWantToBeNormal trying to become human]] (or as close to it as he could get) [[LoveRedeems for her sake.]]