Sistermon Ciel

Sistermon Ciel is a Puppet Digimon. It is a Digimon wearing a veil modelled after a mouse, it is Sistermon Blanc's elder sister as well as the twin sister of Sistermon Noir. Instead of travelling together with Noir and Blanc, it roams around the Digital World investigating unusual phenomena and reports its findings to Gankoomon. Despite its gentle personality, it is strong-willed and popular with the Digimon residing in the places it visits. While it is friendly and leads a peaceful life by day, by night it turns into an assassin who hunts down any troublemakers it receives word of. It has a cherished sword named Shirotsume-Ichimonji (白詰一文字).

Attacks
 * Shirotsume Ichimonji-giri (白詰一文字切り): Cuts down the enemy without making a sound.
 * Byakusai (白殺): Rapid-throws the two knives it hides within its sleeves.
 * Tohhō (突蜂): Lures the enemy in until they let their guard down, then stabs them in their vitals at close range using the knives planted on its feet.
 * Silent Bullet : Unleashes the T in a silent but deadly attack.
 * Fury Fire : Unleashes the T in a rapid fire straight line.
 * Tekken Seisai (鉄拳制裁): Strikes with all its strength at anyone and everyone who talks back to it.

Design
Sistermon Ciel is a humanoid Digimon in the shape of a girl. It wears a sky-blue that resembles mouse ears, a cape, and devil wings. The klobuk features a pair of eyes, whiskers, and teeth with the eyes on the klobuk able to animate and change based on Ciel's emotions. It has smooth blue hair and its humanoid face has blue eyes which haves crosses stitched inside, with its left bang covering its left eye. It wears a white with white designs under which it wears a frilly white  and a pair of white panties. It wears a pair of white heels and a white thigh high socks that end with white frills. It wields the white-and-gold sword Shirotsume-Ichimonji (白詰一文字) which has a black sheath.

In Digimon Story: Cyber Sleuth - Hacker's Memory, it has Sistermon Noir's hairstyle and T guns, but its klobuk is sky-blue with mouse ears instead of black with cat ears, it has navy blue hair in place of Noel's silver hair, and its habit is white instead of black. However, its dot sprite retains Noir's cat ears.

Etymologies
Official name given by the Digimon Reference Book and used in the franchise.
 * Sistermon Ciel (シスタモン シエル)
 * En:.
 * Fr: Ciel (lit. "sky"). From the color sky blue.

Development
Sistermon Ciel was created as a redesign of Sistermon Noir due to religious sensitivities, designed with a sky-blue and white uniform instead of Noir's black to distinguish it from the traditional uniform of a, but is considered a separate species.

Digimon Story: Cyber Sleuth
Sistermon Ciel is #335 in the field guide and is a Light Virus type Champion level Digimon who uses 6 memory. Its special attacks are Silent Bullet and Fury Fire. Its support skill is Supervisor which increases experience in battle and lowers the damage taken by 5%. Sistermon Ciel digivolves from Sistermon Blanc, Lunamon, and Dracmon and can digivolve into LadyDevimon, Pandamon, and Sistermon Ciel (Awakened).

Digimon Story: Cyber Sleuth - Hacker's Memory
Sistermon Ciel is #335 in the field guide and is a Light Virus type Champion level Digimon who uses 6 memory. Its special attacks are Silent Bullet and Fury Fire. Its support skill is Supervisor which increases experience in battle and lowers the damage taken by 5%. Sistermon Ciel digivolves from Sistermon Blanc, Lunamon, and Dracmon and can digivolve into LadyDevimon, Pandamon, and Sistermon Ciel (Awakened).

Digimon Pendulum Ver.20th
Sistermon Ciel is a password Digimon. The password is 231652.

Digital Monster X
Sistermon Ciel digivolves from Sistermon Blanc and Dracomon X and can digivolve to WarGrowlmon X, Cho Hakkaimon, and Lillymon X.