Kanban Lang is a virtual image created for endorsement and brand promotion in business. The game idol of Love between Light and Night is Xiao Yi, and the kanban lang of Love between Light and Night is Xiao Yi.

Love between Light and Night is a female love mobile game created by Northern Lights Studio. The game tells that players will enter a strange city as designers. In this city, there will be five men with different identities pursuing players. Players need to face one choice after another, and each choice will greatly change their future destiny.