After a rainy night, military training on campus is changed to indoor joint training, and the finance class and art class merge their military training. Lin Senmu takes the opportunity to have a quiet chat with his girlfriend Jiang Yuan, and the two make a date to go to the small woods at night. The instructor organizes a fun water bottle grabbing game, and the monitor thoughtfully arranges the two in adjacent positions. Jiang Yuan's roommate Gu Xiaoxiao comes forward to strike up a conversation, causing the jealous Lin Senmu to feel awkward. Before the start, he also secretly picks up a water bottle to drink water, and is teased by the instructor on the spot.