Sun Chian is a member of the school's athletic club who appears in Cupid's Chocolates. In Season 1, She along with the other club members were challenged by Haoyi for the upcoming mid-term exams and if she or the other girls win then it's Haoyi's lost, but if he wins the captain, Tang Xuan, will be punished. She and the girls accept his challenge. The next day when the scores of the exams came in, Sun Chian and all the other members were shock seeing that Haoyi ranked 1st and lost to him. Sun Chian and the girls were disgust that the punishment for Tang Xuan is to wear a maid outfit for the next two weeks. Sun Chian appears in Season 2 following Tang Xuan's footsteps becoming a Cosplayer for the Anime Expo to which she now enjoys and teaming up with her captain. In the next contest, she and her team won.
Sun Chian has light brown hair and light brown eyes. She wears the school's athletic club uniform: blue tang top and blue shorts. In the Anime Expo her cosplay she wears is a short half blue dress with a blue hat.
Sun Chian has admiration for Tang Xuan and is not afaid to defend or stand up for her. She dislikes Haoyi being a pervert. She loves becomeing a cosplayer for the Anime Expo since her captain loves it so much.