Lu Guan

Their abilities complement each other: Lu Guang can view events in photographs, and Cheng Xiaoshi can enter the body of the person who took the photograph at the moment it was taken. Lu Guang is sensitive to Cheng Xiaoshi's emotional state. He is aware of his partner's impulsiveness and is always ready to help and reassure them.
Lu Guang tries to support Cheng Xiaoshi and guide him in the right direction to complete the mission and not cause harm.
During missions, the two support each other, helping and guiding each other.
However, they occasionally clash over different perspectives on situations. These arguments most often arise during their photo sessions, when Cheng Xiaoshi becomes immersed in his client's emotions.
At the same time, Lu Guang admits that he first became attracted to Cheng Xiaoshi precisely because of his naivety and sincerity, which he showed at their first meeting.

Mysterious and hidden, his real age is unknown.
Calm and rational.

See all events that occur in a photograph within 12 hours from the moment it was taken.
Control Cheng Xiaoshi's actions while he is inside the photo and tell him what he can and cannot do.
Share the consciousness of a person depicted in a photograph through touch and use it to control their actions.
Lu Guang helps Cheng Xiaoshi relive the experience of being a photographer - helping him when he is inside the picture.
His choices shape the key events of the story—Lu Guang tells him what he can and cannot do when Cheng Xiaoshi is inside the photo.
The main rule: do not interfere with the events of the past, because the consequences can be unpredictable.

Tall, with pale skin, long eyelashes, and steel-gray eyes. He has fluffy white hair that reaches his ears and dark eyebrows. When Lu Guang's ability to foresee events in photographs is activated, his eyes change to an icy blue.