In episode 7 of ENA’s Monday-Tuesday drama ″Rookie 4: Sabotage,″ actress Han Ga-in appeared as Jeon Woo-joo, the older sister of Jeon Jeon-se-gye (played by Kim Dong-jun), bringing new energy to the storyline. Han Ga-in’s appearance brought changes to the daily lives of the soldiers preparing for discharge, especially showing Choi Byung-nam (played by Kim Hee-soo) regaining vitality after meeting Jeon Woo-joo, following his struggles with a breakup with his girlfriend.

The members of the 3rd barracks unit were instantly captivated by Jeon Woo-joo, and when she faced her younger brother Jeon Jeon-se-gye, a realistic sibling-like exchange of disses and a scuffle unfolded, showcasing a surprising charm. Han Ga-in revealed the character’s emotional range by switching between a warm demeanor in front of the soldiers and a familiar side in front of her brother.

The episode also featured the 2nd company’s ″True Education Operation″ against the Wisu District Commercial Association. Following Jo Baek-ho’s (played by Oh Dae-hwan) scenario, the 2nd company, fully armed, confronted the students and the head of the commercial association, and Battalion Commander Byun Hyuk-jin (played by Lee Hyun-kyun) demanded the abolition of overcharging soldiers and the implementation of a permanent discount policy. The commercial association accepted the demands, and afterward, the 2nd company members enjoyed a samgyeopsal (pork belly) dinner together.

Additionally, Kang Chan-seok’s (played by Lee Jung-hyun) challenge to take the college entrance exam was depicted. Although Jo Baek-ho assigned a special tutor, No Hee-jung (played by Jo Jin-se) revealed insufficient knowledge, and later Moon Bit-na-ri (played by Kim Yo-han) appeared as a true expert. Kang Chan-seok showed moments of losing patience with his exam studies.

At the end of the broadcast, a scene showed the regiment commander deploying the 2nd company as the opposing force in the large-scale maneuver training called ″Patriotic Training″ to lower Byun Hyuk-jin’s commander evaluation. The episode ended with the 2nd company facing off against the Marine Corps, heightening the tension.

Episode 7 recorded nationwide ratings of 4.6% and 4.2% in the metropolitan area, with a peak rating of 5.2% per minute. It maintained the number one spot in the Monday-Tuesday drama slot and its time slot. Episode 8 of ″Rookie 4: Sabotage″ will air on the 15th at 10 PM on ENA and can also be watched on KT Genie TV and TVING.