My childhood friend, right in front of me... 2

Nanio recounts his recent sexual encounter with his childhood friend Yuu to his group of friends. He details how they engaged in various sexual acts in a public park, culminating in full intercourse despite the constant risk of being seen by passersby. Following his explicit story, Nanio reveals that he actually invited Yuu to their current hangout. She then arrives at the gathering, leaving the rest of the group completely surprised by her sudden appearance.