Gender: Female Age: 17 Height / Weight: 169cm / 48kg Features: One of Xuanwu's assassins, ranked 37th. She uses two short swords as her primary weapons and has a dagger attached to the end of her braid. She has feelings for Wu Liuqi, also known as Seven.

Gender: Female Age: 22 (Estimated) Height / Weight: 16?cm / 4?kg Features: A female member of Xuanwu's Shadow Assassins with red hair mixed with white highlights.

Gender: Male Age: 2? years old Height / Weight: 17?cm / 6?kg Features: Becomes stronger by consuming the opponent's blood.

Gender: Male Age: 28 Height / Weight: 18?cm / 7?kg Features: One of Xuanwu's Shadow Assassins and the master of Thirteen.

Gender: Male Age: 2? years old Features: A blue broiler chicken who calls himself the Chicken King. He is Seven's friend and Xiao Fei's guardian. He is a very intelligent chicken and shows excellent technical skills, such as creating the Gaiba Egg, a transformation item.

Gender: Male Age: ? years old The son of Da Fei. Currently a hybrid of a chicken and a pigeon with Dai Bo as his guardian. Unlike Dai Bo, he can fly and possesses special powers such as entering muscle mode or healing injured bodies. In muscle mode, Xiao Fei is strong enough to overwhelm Thirteen, but he collapses from exhaustion after transforming.

Gender: Male Age: 2? years old Height / Weight: 18?cm / 8?kg Features: Large build with a blunt personality. He likes small birds and wears gloves on both hands.

Gender: Male Age: Mid to late 30s? Height / Weight: 168cm / 5?kg He helps Dai Bo and the others but says he cannot enter Xuanwu himself, giving them a token to ask his gatekeeper at the Heavenly Dragon Gang for help. Later, when Seven is recovering and realizes his memory loss is due to poison, he helps detoxify him. He proves to be a truly powerful master against the regained and ruthless Seven.

An assassin who joined as a rookie right after Seven left the Shadow Assassins. He possesses skills on par with Seven and is jealous of him.