Although I read the story in machine-translated language, it was an intriguing read for me. Since my native language isn't English, I'll provide a review in English based on the MTL version.
The revenge plot against Sung Eun-Yul seemed overly dramatic. Though he was portrayed as a villain in the book, his main transgression was reportedly spraying pheromones (which affected Alpha Hyun Jeha negatively) – a relatively minor offense. Sung Eun-Yul, an orphan, managed to accumulate wealth, though the specifics aren't clear. The revenge story involved financial ruin, loan sharks, and ultimately, leading to Sung Eun-Yul's suicide. However, in this alternate timeline, the main character (ML) gave him a small amount of money as charity, which left Sung Eun-Yul struggling on the streets, pregnant and hungry, eventually finding a job at a restaurant.
What intrigued me was the MC's situation upon entering Sung Eun-Yul's body. Since the MC had already slept with the ML, it's unlikely that Sung Eun-Yul would have ended up pregnant and suicidal due to the same circumstances.
Sung Eun-Yul, who had access to the original novel and knew Kang Ha-Joon's background, might have been influenced by his knowledge of the ML. The MC feared the ML discovering the child, but he didn't harbor deep hatred for Kang Ha-Joon. The MC's misfortune had largely unfolded before his transformation, causing anxiety and guilt over Hyun Jeha's revenge, which was eventually forgiven after a misunderstanding.
Sung Haneul, the child, was a delightful character. Despite the challenges, Sung Eun-Yul provided a loving upbringing. The MC, prior to reincarnation, led a hard life, sharing Sung Eun-Yul's loneliness. As Sung Eun-Yul, the MC found companionship with his son and grandmother, which contributed to his quick affection for the ML.
When the ML confessed, he focused on moving forward, acknowledging that they couldn't change the past. He expressed remorse for his actions and vowed to improve, making the MC happy, hoping guilt would fade over time.
The narrative took a significant turn when the MC transformed into Seong Haneul. The story lacked a wedding between Kang Ha-Joon and Hyun Jeha, and the ML held his father accountable for his wrongdoings.
In summary, while the MTL version presented an engaging story, the character development and motivations were thought-provoking, particularly regarding the MC's experiences and the evolving relationship between the characters.