My Character Crumbled After I Was Forcefully Taken

Xu Ming transmigrates into the beloved figure in a wealthy-family body-double story and has to follow the System's prompts to play out the plot. He's tired of following the script, but the penalties for breaking character force him to keep up the original persona of the beloved figure. When others are around, he is aloof and chaste, like an icy immortal. When no one's around: This is so boring. Life is stagnant as a pool of dead water. How can I have some fun without breaking character!!! Then one day, he notices that his proper, old-fashioned adopted older brother has been looking at him strangely. The gaze clinging to his back is like moss spreading wildly in a corner, closing in step by step, following him like a shadow. To play the aloof beauty convincingly, Xu Ming throws out the things and clothes of his that the other man has secretly kept in his room, brushes his hand away, and coldly sweeps off. The gaze behind him is so hot it feels as if it could burn right through him. Xu Ming discreetly rubs his arms, where goosebumps are frantically warning him. So creepy… It's really…so…so… So thrilling! * All these years since the Xu family adopted him, Fu Rangyun has always kept his distance, exercising an almost inhuman level of self-control. He thought he could stay rational and composed forever. But day after day, watching the people surrounding Xu Ming, he began to imagine them disappearing, leaving Xu Ming to look only at him. The more he tried to suppress the raging fire of desire, the more insatiable it became. Fu Rangyun decided to use every means at his disposal to keep Xu Ming by his side. As he held back the restless blood coursing through his every limb, he planted a burning kiss on the other's hand. Just as he expected, those eyes filled with anger, disgust, and fear. The man he was crazy about regarded him as a monster and fiercely rejected his love. His possessiveness slipped beyond his control, and Fu Rangyun imprisoned him in the manor he had built himself. No one else would ever occupy Xu Ming's gaze again. Only him. * One day, as usual, he waited outside the door for the other man to fall asleep. From inside the room, he heard him speaking on the phone: "...Leave here?" Fu Rangyun gripped the doorknob tightly, his eyes dark as a deep pool as a storm brewed within them. "I'd have to be crazy to want to leave... You have no idea how thrilling the way he looks at me is... Just thinking about it..." Fu Rangyun: "…" Was this a case of coercive love, or were they both in love? Theme: Being the same inside and out