Legally Dad

Orphan Ah Young is a financially struggling 23-year-old who takes care of her 8-year-old sister Dan Bi while juggling part-time jobs. One day a 28-year-old man Yoo Sang appears in front of Ah Young offering to be her dad through a signed agreement.

• Lee Hyun-jooKim Ah Young
• Choi Kyung-hoonSul Yoo Sang
• Lee A-raKim Dan Bi
• Min Se WoongYoon Joo Ho
• Kwon Hae WooYoon Hae Woo (Yoo Sang's Secretary)