Twin Agents

At age seven, Jiang Shidie was sent to the Su Kingdom for refuge and was saved by the super agent Leng Yuan, secretly trained by the Su Kingdom's spy organization Black Cave. A brief time together forged a deep bond between them, though Leng Yuan always wore a mask, leaving Shidie to know her only by the code name 757. When Shidie was taken back by her family, Leng Yuan intended to accompany her to the Hua Kingdom but was instead captured and frozen by the organization. Eighteen years later, a car accident brings their fates together again. As they reconnect, their bond deepens further; Leng Yuan repeatedly saves Shidie from danger, while Shidie brings color to Leng Yuan's previously empty emotional world.