Summer Colored Sisters ~Making Secret with Childhood Friends in Midsummer~

Niyama Tatsuya studied in Tokyo for a long time and now, many years later, he returns to his home in a small provincial village high in the mountains. There he is met by his parents and childhood friends Komi Taran (Kumi) and Tsuru Taran (Haru). Tatsuya was delighted with how his girlfriends had grown up. They became incredibly sexy. Tatsuya decides to seduce his girlfriends and have depraved sex with them. However, it was not difficult, because Kumi and Haru still love their "brother".