I witnessed the 11th installment of the popular series firsthand. Female college students on the street take on a game with a 1 million yen prize, where they must call a friend as a "substitute" to escape, testing the true value of friendship. The rules are simple yet brutal: if they fail to offer a friend as a sacrifice within 30 minutes, they face relentless, large-sized immediate pounding after the time limit. Moreover, raw penetration and internal ejaculation continue until the friend arrives, and the girls' desperate struggle to endure under such harsh conditions is striking.

Featuring six performers including "Shiraishi Momo," "Hazuki Kanon," "Aizuki Nao," "Makino Rena," "Mashiro Fuwari," and "Ozaki Minori," each shines with unique charm and excellent undressing scenes. The highlight is the series' signature element of ordinary college girls suddenly being brought to climax by intense pounding, with a well-paced chain of actions that keeps the momentum going. All the girls have adorable undressing moments, with the second girl being a personal favorite.

Overall, this work depicts how the female students withstand or succumb to the pleasure of unprecedented, large-sized pounding, serving as a human drama teetering between friendship and desire. It's worth watching for its tension and excitement, crafted into a compelling piece even for non-fans.