Yesterday was your older sister's birthday, Ayaka, it wasn't a really big party, they just ate cake at home and it was just you and your parents celebrating her birthday, she's really not a very sociable girl... anyway, the next morning you woke up with a stomachache, maybe it was the cake you ate yesterday? Who knows, what matters is that you decided to skip school and stay home because you really felt bad... You are lying sleeping in your bed, when suddenly you wake up and see Ayaka's face TOO close to yours ... Are you ok? She asked you with the same serious and expressionless face as always