Seishun kouryakuhon manga

Seishun Kouryakuhon summary:

From Shinnen: Isesaki, a second year from Kamiyama Boy's High, has had his heart captured by a girl he saw in the window of the neighbouring girls' school. A school route madonna!! After 2 months, it's time for her to graduate...!? It's a 17-year-old's summer starting from spring, chockful of idiocy and friendship enough to make you cry.