오차 범위, written by 홍차사 (Hongchasa), has been fully released on RidiBooks as an exclusive Romance Contemporary web novel. The story places a realistic woman at the center of an arranged marriage that suddenly replaces the groom, complete with business intrigue, a chaebol, and the question of whether everything was planned from the beginning.
The narrative focuses on a marriage that starts from pure calculation, a male lead who appears cold yet has a romantic side, and the development from business partners into something deeper.
Quick Summary
- Korean title: 오차 범위
- Romanization: Ocha Beomwi
- Natural English title: Margin Error
- Official English/global title: Margin Error
- Format: web novel
- Status: Completed
- Chapters: 63 (19+ version) / 59 (15+ revised version)
- Author: 홍차사 (Hongchasa)
- Genre: Romance Contemporary / Romantic Comedy
- Platform: RidiBooks (exclusive)
- Rating: 4.9 (757 reviews) for 19+ | 5.0 (26 reviews) for 15+ version
- Publisher: 테라스북 (Terrace Book)
- Male lead: 강모준 (Kang Mojun), 29, CEO of Muyeong Hotel
- Female lead: 백도연 (Baek Doyeon), 27, Florist
- Story focus: Arranged marriage, groom replacement, business scheme, and romance growing from calculation
- Event: Launch event with free coupon
- Official Indonesian edition: not yet announced
- Webtoon/anime adaptation: not yet announced
Romance Contemporary Web Novel on RidiBooks
The work is published as an exclusive Romance Contemporary web novel on RidiBooks by Terrace Book. Author 홍차사 introduces a story of an arranged marriage that begins with cold calculation, in which the female lead must face a sudden groom replacement to save the family's business investment.
Two versions are available: the original 19+ (63 chapters) and the 15+ revised edition (59 chapters).
Forty-Eight Days Until the Wedding
The official synopsis states that forty-eight days before the wedding, the prospective groom appears on the 9 o'clock news as a criminal. The business investment promised as a condition of the arranged marriage is about to fall through.
Then comes the dialogue:
- "I'd like to swap the groom."
- "For whom?"
- "Me."
The male lead's younger cousin suddenly arrives and offers to take the groom's place in order to continue the deal between the families. Since this is not a marriage of love, the female lead thinks it does not really matter who the groom is. The cousin's appearance is also far better.
Another exchange:
- "You didn't have to go this far."
- "I'm doing this because I want to."
The married life begins from thorough calculation. The female lead initially intends to maintain a relationship akin to amicable business partners, until the statement appears:
- "You were dancing in the palm of your husband's hand from the very beginning."
Was everything a pre-arranged scheme?
Cover Features the Male Lead in a Tuxedo
The cover illustration depicts a handsome black-haired man wearing a black tuxedo complete with a bow tie and a white orchid boutonniere. He poses with his hand on his chin against a luxurious wedding party background with chandeliers and flowers. The cover is marked "19세 미만 구독 불가".
Arranged Marriage Relationship Forms the Core of the Story
The novel does not focus solely on ordinary romance. The relationship that begins from an arranged marriage and business scheme serves as the central element. The male lead (Kang Mojun) is portrayed as a chaebol who appears cold yet possesses a romantic side, while the female lead (Baek Doyeon) is a realistic, capable, sarcastic, and easygoing woman.
Why This Matters
1) Arranged marriage premise with a groom-swap twist
The original groom is suddenly replaced by a far more attractive cousin, creating a distinctive situation from the start.
2) Combination of "Scheming Man" and "Pure Hearted Man"
The male lead has two appealing sides: calculating and scheming, yet also possessing a hidden romantic nature.
3) High rating from the launch day
With a 4.9 rating from hundreds of reviews shortly after release, the novel demonstrates strong reception.
4) Two age-rated versions available
Readers can choose between the original 19+ version or the 15+ revised edition according to preference.
Web Novel Information
The key details currently known are:
- The official Korean title is 오차 범위
- written by 홍차사 (Hongchasa)
- genre Romance Contemporary / Romantic Comedy
- published exclusively on RidiBooks by Terrace Book
- completed status with 63 chapters (19+) / 59 chapters (15+)
- rating of 4.9 (757 reviews) and 5.0 (26 reviews)
- male lead: Kang Mojun (29), CEO of Muyeong Hotel
- female lead: Baek Doyeon (27), Florist
- synopsis centers on an arranged marriage with a sudden groom replacement and the possibility of a hidden scheme
- a launch event offers free coupons
- official pages are available on RidiBooks
- an official Indonesian edition has not been announced
- webtoon or anime adaptations have not been announced
Closing
오차 범위 presents a Romance Contemporary premise centered on an arranged marriage, a groom replacement, and the development of a relationship from cold calculation into something deeper. The novel has been fully released on RidiBooks with a high rating and support from a launch event.
Further story developments and possible adaptations remain subject to future official announcements.
