On-jo has dark brown eyes, dark brown hair that reaches just below her shoulder blades, and a small, thin frame. Her … See more

On-jo was a typical upbeat high school girl who was eager to make her father proud while struggling with her grades, spending time with her friends, and crushing on the school's popular heartthrob: Lee Su-hyeok. The zombi… See more

In the original webtoon Now at Our School, On-jo and Cheong-san are also romantically involved. The Netflix series updated this, adding a love triangle between On-jo, Cheong-san, and Su-hyeok.… See more