Blue Vignettes #1 (Page 3/9) (Patreon)

It was the middle of summer vacation, when Nanjou Seishiro had an unexpected guest in his apartment—It was his little sister Saori. She was a student in Kawakami High School, where Seishiro worked as a teacher. Saori said that she wanted to spend some time with her brother. Meanwhile, Seishiro already had a plan to go to the pool today. Hearing the word ‘pool’ made Saori’s eyes brighten and she wanted to come along. Reluctantly, Seishiro said yes. A second later he started to regret it already…