Recalculating Your Route — GPS, 'Detour' - S1.E7

Common sense and Narae, who ended up kissing outrageously whether it was from alcohol or drugs. But after kissing, common sense doesn't send the worst text 'I'm sorry' or go on a blind date! Narae finds out the truth and gets angry. Among them is a spy! Mattan has a gut feeling that someone is stealing information from Baek Won. While observing her teammates, she accidentally hears Kang-mi's phone call... . Kang-mi, whom I trusted, is a spy?