[Kurihara Kenshirou] Onee-chan wa Shinpaishou (COMIC ExE 26) [xinsu] [SPDSD] [Decensored] [Colorized]

Nana-san's swimming lesson takes an unexpected turn when a young boy seeks more than just swimming instruction at the local pool. As the heat of the summer day intensifies, the boundaries between teacher and student blur amidst the water and private moments. Tension builds as the alluring older woman finds herself caught in a much deeper, more intimate lesson than originally planned.