Hirose Kairi attends Rikkai Dai Junior High.
For some reason, all her friends have loved playing tennis for as long as she can remember... So she started learning tennis too.
The result was that she played terribly. Really terribly.
"It's okay. Everyone has different strengths, so don't force yourself."
"You just have to keep watching us win."
"You have a talent for being a manager. If you're willing... could you help me? I really need you."
At least all her friends were wonderful girls!!
"Let's always stay together!"
It would be wonderful if their childhood promise came true... If they could always smile happily and this blissful everyday life could go on forever...
Until the day her childhood friend gently kissed her lips and the older girl she admired wrapped her arms around her waist, telling her that things weren't what she thought.
Everyone's gender is swapped (?). Girls' love in the first half, boy-girl romance in the second. You can tell from the synopsis that this is a Yukimura-Yanagi love triangle. I haven't decided on the pairings. I want them all, but it's so hard...
Theme: Yukimura-Yanagi sandwiches are delicious.