Serina arrived at school one day to discover her desk had been vandalized—someone’s scratched the lyrics to a love song in it…and that someone turned out to be Mizukawa-sempai, a boy who’s one year her senior. Before she realized it, she'd asked him out … and now, they're well on their way to the next step in their relationship! Serina's starting her second year of high school soon, and that means Sports Day is right around the corner. She can barely contain her excitement when she finds herself on Team Red with Mizukawa-sempai…but Higuchi-sempai winds up on Team Red too, and he's got his eye on Serina!