This brought me back from my BL slump I have been in recently. I normally don't like Amnesia plots because they feel very forced and unnecessary to me but in Jack O´Frost they did it right. The whole story revolved around Ritsu trying to remember his time with Fumiya and falling in love all over again, while Fumiya realises that he needs to work on himself for their relationship to work. I loved how natural and well rounded the characters felt and how sweet they were with each other . They didn't have weird drama that felt out of place or a forced side couple it was simply them getting to know each other even more and falling in love harder after revisiting their memories. I think this is definitely a comfort BL with a big rewatch value.