Fresh graduate Xu Jia cooks daily for her co-rent roommates to save on delivery money, charging only 350 yuan per month at cost price. New roommate Jiang Zhou uses 'loss-reported meals' from her boyfriend's fast-food restaurant to intercept for free, and the roommates turn against Xu Jia while suspecting her of making a price difference. After a collective bout of bad stomachs, Xu Jia tosses out a year's worth of accounts to prove her innocence, moves out to go solo, and starts making meal-prep videos for working people, becoming a hit. Former roommates go from free meals and losing out on errands to coming back and begging for a 'monthly meal subscription', but can only buy them for 15 yuan a portion. Jiang Zhou impersonates business fraud, her livestream crashes, and she is finally exposed. Xu Jia clearly prices everything and sets clear boundaries, turning cooking into her own career.