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.

Webtoon that had a Webdrama adaptation in 2020 under the name 'Legally, dad'

[Original Web Novel](https://series.naver.com/novel/detail.series?productNo=5331905)
[Original Webtoon](https://series.naver.com/comic/detail.nhn?productNo=6123829)