Male Protagonist: Li Zeqian - President of Li's Multinational Group, 29 years old, cold and domineering, extremely possessive, not close to women, but has no bottom line for Luo Ning, doting on his wife, crazy and extremely jealous
• Heroine: Luo Ning - a sophomore student in the Art Department of University A, 19 years old, naughty, cute, full of energy, loves sweets, has a bad temper, and is brave enough to tease the boss
• Second male lead: Gu Yubai — Luo Ning's senior, gentle and sunny, has a crush on Luo Ning, and is Li Zeqian's number one jealous target
• Second female lead: Qiao Muxue – the daughter of a socialite, Li Zeqian's childhood sweetheart, paranoid about Li Zeqian, targeting Luo Ning
• The heroine's best friend: Su Kexin—Luo Ning's classmate, honest and straightforward, assisting throughout the process
• The male protagonist's best friend: Jin Ye – Li Zeqian is young and cynical, and is responsible for eating melons + persuading Mr. Li to pamper his wife
