薫る花は凛と咲く 6 by Saka Mikami

Kaoruko attends an elite girls school while Rintaro goes to a lower ranked boys school. Rintaro finds his time with Kaoruko comfortable and gradually realizes he is falling in love. When they are alone, his feelings overflow and he blurts out that he likes her, which prompts him to decide to confess. The story follows the course of their earnest, quietly blooming romance.