An ABO story (with some original worldbuilding. If that bothers you, please don't read.)
One encounter brought Gong Qingyu together with the most important person in his life. This person gave him warmth and a sense of home, soothing the pain of his unhappy childhood. But disaster still struck. An ordinary kidnapping turned out to be tied to a massive conspiracy.
"Big brother, do you believe me?"
Gong Qingyu desperately tried to win Shen Muan's trust, but Shen Muan had been consumed by hatred and could no longer think clearly. For a time, he tried to escape from the person he believed was a "murderer." Afraid his big brother would leave, Gong Qingyu devised one scheme after another, until at last he had his big brother all to himself.