Natsuyasumi - Season 1

Over the course of his summer break, Yuu, a young boy, encounters Natsuki, a lovely stranger who is catching crayfish at the riverside, and an immediate mutual attraction springs up between them. What begins as curiosity quickly becomes physical, with Natsuki guiding him into mutual bodily exploration, until Yuu learns that the captivating "girl" with whom he has just had his first sexual experience is in fact a boy. Flustered and confused by this unforgettable meeting, Yuu finds himself unable to stop dwelling on what the two of them did together.