OLD SUMMER TRILOGY #2 Being the niece of the volleyball team's coach, Alia is hired to design the uniforms of the players. Seven, who has had a crush on her since the first time he saw her on the campus, feels shy and awkward whenever her presence is there. What more if one summer, the whole team will have to train in the coach's province near the ocean, where Alia is also having her vacation? Every night, since Alia cannot go to the house where the team is staying, the two would just write silly letters to each other and put them in a bottle, then hang the bottle in its usual spot.

OLD SUMMER TRILOGY #1 Estella and Yori have always been rivals ever since high school because of debate competitions. They would always switch places for years until Yori transferred to Estella's school and both of them became members of the debate team. They may not be competing against each other in the debate anymore, but they are now competing for the honors and the top student spot. From enemies and academic rivals, they find themselves falling in love in a series of summers.