Qi Tingyan's parents died, leaving him the only surviving bloodline of the Yongsheng Prince's residence. At six, he was brought back by his aunt to be raised by the Gu family, where he grew up alongside his cousin, Gu Mingshu.
Gu Mingshu was two years older than Qi Tingyan. Gentle and warmhearted, she took good care of her younger cousin.
After years together, Qi Tingyan developed a possessive, obsessive fixation on Gu Mingshu. But she treated him like a younger brother, and he didn't dare voice his forbidden desire, afraid that she would distance herself from him if he did.
During the Shangyuan Festival, the Crown Prince, Xiao Qi, took an interest in Gu Mingshu. After that, he did everything he could to make her his. Qi Tingyan foiled the crown prince's schemes time and again, protecting Gu Mingshu, but she never noticed.
Later, a young woman came to the Gu family and claimed that Gu Mingshu was an impostor, and that she was the real daughter. Overnight, Gu Mingshu fell from grace. After an argument with the young woman, she ran from the Gu residence in tears.
Qi Tingyan caught up with her and held her tightly in his arms, his eyes full of greedy possessiveness. He soothed her, saying, "Don't cry, Sister. I'll protect you. Let's go back to the Yongsheng Prince's residence. No one will be able to bully you."
Gu Mingshu moved into the Yongsheng Prince's residence. She lived in luxury and continued to get along with Qi Tingyan as before. But one day, as she happened to pass his bedroom, she heard him calling for his sister. She pushed open the door and saw a scene that horrified her: Qi Tingyan was pleasuring himself with the undergarment of hers that had gone missing.
Gu Mingshu turned to run in fright, but Qi Tingyan closed the door before she could escape. The boy had grown into a young man, and his strong arms blocked her way. He leaned close to her ear and said hoarsely, "You saw it, didn't you, Sister? I've loved you for a long time."
Gu Mingshu trembled as she tried to reason with him. "We're siblings. We can't..."
Qi Tingyan covered her mouth and said passionately, "If we become husband and wife, we can be together forever. Let's stop being siblings and become husband and wife instead. Will you?"
[Reading Guide]
This story is also titled My Good Little Brother Suddenly Became Terrifying.
I was writing a story about a man forcing a woman into marriage, and this story suddenly came to mind. It features the second male lead forcing the heroine into marriage, while her childhood sweetheart, the male lead, protects her. The story begins when they're children, and features a younger man with a secret crush.
Theme: You have to strive for success.