Caged by a Lovesick Deadly Warrior

After transmigrating to ancient times, Xia Qiu hadn't had a single peaceful day. She'd just gotten down from the rope she'd tried to hang herself with, her neck still aching, and asked her adoptive parents and siblings why everyone was crying. That's when she learned the family had been implicated by their masters, and they were all about to be executed. Xia Qiu: ? While her adoptive parents were still standing firm and refusing to surrender, Xia Qiu dug a dog hole and fled in the middle of the night. Things were even worse outside. Holy crap, it was a time of chaos! Corpses littered the ground, and officers from the imperial court were hot on her heels! Xia Qiu ran to the river, held her breath, and lay face-down on the “corpse” of a handsome young man who was relatively clean. Just as she was about to play dead, someone stroked her head and neck. Xia Qiu: ?? She looked down and met a pair of smiling, crescent-shaped eyes. The young man was covered in blood, and he gripped both her wrists, staring straight at her. “The Xia family were all beheaded, so how did you manage to escape alive, dear sister?” Xia Qiu couldn't take it anymore and fainted from fright. * Xia Qiu never expected to survive. The young man who took her in seemed to have done so on a whim, bringing her home to keep her captive. To stay alive, Xia Qiu did everything she could to understand him. He had no name, no manners, and no real sense of rules. He was young, childish, and cruel, an adolescent assassin raised by the imperial court to give his life from birth. Xia Qiu taught him and kept him company, getting close to him in every way to save her own skin. At first, he loved teasing her for fun. Gradually, though... What he loved most was being held by her, kissed by her, and touched by her. He wished he could keep her locked in his arms at all times. For the first time in his life, the young assassin seemed to have something in the world he couldn't bear to lose. Especially in bed, his relentless initiative nearly left her breathless. He smiled pitifully with his beautiful face, treating her as if she were his whole world as he called her, “Qiu Niang... Qiu Niang... Will you leave me? Will you?” When Xia Qiu discovered his deeply rooted, unhealthy obsession, she was a little scared. But his deranged obsession was so extreme that he wanted to die whenever she left. With no other choice, Xia Qiu could only stay by his side. Night after night, she'd hear his tender, honeyed voice in her ear as he rubbed his bloodstained face against hers, calling her, “Qiu Niang, Qiu Niang, Qiu Niang, Qiu Niang.” “I love you more than anyone. Do you love me?” “If you leave me... I'll go die...” A clever, laid-back office worker heroine x a little mad, clingy younger man The male lead is sweet on the outside and dark on the inside, more clingy than ill [probably]. He's super clingy and ill-mannered. This is an obsessive-love story, not a pure-hearted, beautiful-love story. Don't mention real-life celebrities or characters from other authors' books. Both are each other's first and only love. I check the latest chapter at a fixed time each day. Theme: Cherish life. Live intelligently and fearlessly, no matter the danger