Xiao Jian jumped into the water to save Sonny.

This plot happened in episode 79. Where is the new Princess Huanzhu? Sonny Xiao Jian was attacked on the water, and Sonny accidentally fell into the water. Xiao Jian went into the water to save Sunny, tried his best to save Sunny who was dying, and resolutely sewed the wound with needle and thread. If you want to know more about the specific process, you can watch this episode.