On the day, a scene where Eun Dan O (Kim Hye-Yoon), a prestigious high school girl, walked away with a male student's gaze and walked away with her father's only daughter, announced the birth of an unusual school romance. However, Eun Dan O who had repeatedly lost her memory in the usual daily life and was in vain was surprised to find out that she was not a human being but a cartoon character.

The first episode captures the character of each of the cartoon world and characters seen from Eun Dan Oh's eyes.

Aside from the amazing casting, the visuals of the cast also capture the viewer's eyes. Lee Jae Wook gave off the stunning aura of a boyfriend material that features his manly side, cold and mysterious where most of the girls want.

Meanwhile, some of the casts also catch the viewers' attention for the shocking revelation on the premiere episodes where it was revealed that Kim Hye Yoon and Lee Jae Wook weren't the main characters and in fact, Eun Dan-O is just an extra character who is already dying.

It is expected that for the next episodes, Eun Dan O will go against her fate for the webtoon and the audience and fans were curious about what she will going to do to be able to find her one true love. The point of watching is the end of Eun Dan O, who acts with her own will and acts against the fate of the comic extras.

Meanwhile, fans noticed the fresh aura, Kim Hye Yoon gave off. It was different from the character she played on the hit Korean drama, "Sky Castle". In the JTBC 'SKY Castle', which was popular with more than 20% viewership, she appeared as the daughter of Yeom Jung-ah, Jung Joon-ho.

Fans commented, " Kim Hye Yoon's character is refreshing"

On the other hand, " A Day Found By Chance" is expected to gain more views as the episodes go by, as well as the development of the characters in the story.