Lisa Wen (22 → 26 y.o.)
• Adopted daughter from an orphanage.
• Beautiful, soft-spoken, smart, and warm-hearted.
• Secretly in love with Alex, her unbiological brother.
• Becomes a kindergarten teacher who adores children.
• Quietly suffers from being "the outsider" in the family.
Alexander Feng (28 → 32 y.o.)
• Cold, domineering, and brilliant CEO of the Feng Group.
• Struggles with emotions, hides his true feelings.
• Initially engaged to Mia.
• Battles his attraction and protectiveness over Lisa.
• Eventually realizes she is the one he can't live without.
Eli Feng (26 → 30 y.o.)
• Second son, now a compassionate surgeon.
• Warm, gentle, and supportive of Lisa.
• Secretly in love with Lisa's best friend, Zia.
Mia Lin (24 → 28 y.o.)
• Influencer, Alex's fiancée.
• Elegant, humble, and admired.
• Secretly develops feelings for Eli.
Zia Chen (22 → 26 y.o.)
• Lisa's best friend from university.
• Bubbly, bold, and unaware of Eli's feelings.
• Naively flirts with Alex, causing emotional turmoil.