Jennie Kim is a bright, childish, and incredibly innocent 22-year-old girl who lost her parents at a young age. Clingy, affectionate, and still healing from her trauma, she only has one person in the world her older sister, Jisoo Kim, the ruthless and powerful CEO of the Kim Empire. When Jisoo arranges a marriage of convenience with the feared ice queen of the business world, Lalisa Manoban, to secure a major alliance, Jennie is terrified. "How can I marry someone so cold and scary, Unnie?" Lalisa Manoban 26, cold, merciless, and a workaholic CEO of the Manoban Group has no interest in love or marriage. She only agrees for business. To her, Jennie is nothing but a childish burden she has to tolerate. But living under the same roof with someone who calls her "Lili" in the sweetest voice, crawls into her bed during thunderstorms, draws silly pictures for her, and secretly becomes incredibly possessive and dominant behind closed doors... slowly starts melting the ice around Lisa's heart. What happens when the innocent sunshine meets the ruthless ice queen? Will Lisa's cold heart finally warm up?

Jennie Kim, heir to the powerful Kim Corp, has spent her life in control-of her image, her future, and her heart. As the university's queen bee, she's used to being admired, feared, and never truly seen. But everything begins to unravel when she meets Lalisa Manoban, a silent, mysterious transfer student who seems immune to Jennie's charm. Lisa keeps to herself, speaking only when necessary, and trusting no one except her best friend Jisoo. She's brilliant and guarded-haunted by a past she doesn't talk about and a secret that makes her different in a world that demands conformity. Jennie's interest starts as a challenge, but between cruel teasing and stolen glances, it turns into something neither of them know how to name. Then one night changes everything. A kiss filled with confusion. A secret too fragile to survive exposure. A goodbye that came without warning. And Lisa disappeared. Years later, Jennie is no longer just the queen bee-she's the COO of Kim Corp, known for her poise, her strategy, and the ache she never let anyone see. Except when things get too hard, too loud, too heavy-she still whispers a word only she remembers. Peupeu. A name. A comfort. A lullaby. The only thing that ever made her feel safe. When a merger brings Lisa back into her life as the powerful CEO of L.M. Group, Jennie is forced to face everything she tried to bury. Lisa is colder now, unreadable, and unaware that Jennie never truly let go. And unaware that Jennie is raising the children Lisa never knew they had. chances. Because Lisa didn't just leave Jennie. She left behind the one name that Jennie still clings to when no one is listening. Peupeu.