SKMJ-628 For close friends only // A classmate on a school trip takes on the challenge of earning 1 million yen by completing a group debut challenge! A shy girl with her friends and an excited first-timer on the verge of losing control! The best memory ever… an unforgettable first experience and a memorable coming-of-age moment.

Classmates on a school trip in Tokyo challenge themselves to create the ultimate memory: if they can complete a four-person first-time experience and help two virgins lose their virginity, they win 1 million yen! Their teenage desires were intense. A shy girl blushes and becomes flustered around her virgin male friend, while the boys openly show how badly they want to get closer. A wild four-way encounter leads to an unforgettable first-time experience. A female friend who never imagined being intimate with a male friend until just moments before is shocked by the unexpected double first-time experience.