Lin Ruanruan, a max-level retired mercenary boss, codenamed "Blood Rose", is tired of swords and swords and just wants to be an ordinary JK to retire. After she transferred to another school, she disguised herself as a sickly girl who could only take three steps to catch her breath. However, she was treated as a fragile item and crazily protected by Lu Ye, the school bully who was frightened by the whole school. Lu Ye thought that she was the most fragile creature in the world, and she performed the drama of protecting shortcomings every day. Little did he know that the heroine could easily crush bottle caps, kick away gangsters, and smash through iron doors with a shot put. When the kidnapping case came and Lin Ruanruan was forced to take off his glasses and use a branch to kill the knife-wielding gangster, Lu Ye's world view completely collapsed - it turned out that the one he was desperately protecting was the real boss.
