Klaud Nine is a woman above average height with a slim, fit physique. She has blonde hair and lightly colored (purple in the first anime and light blue in hallow) eyes, and a large scar marks the upper portion of her face in an "X" formation, meeting between her eyes. Her Exorcist uniform consists of tight black pants worn under a skin-tight, sleeveless top that has tails on either side of her legs, all trimmed in gold. She wears thick gauntlets on her arms that almost reach her shoulders, as well as several belts that bear pouches along the back. One half of her face is covered by hair, and the other side has burn scars (although in both the second and fourth opening themes and in one scene of the anime, the burn scars do not appear as visible as it does in the manga, appearing as slightly lighter in skin tone on her face). She has round red earrings.
She seems to be a gentle woman, as she is seen weeping for her deceased team. She also seems very friendly and calm, as she was shown taking Timothy to the nurse when he got a fever from being in the rain. However, she is very stern and serious when it comes to her duty as an Exorcist, as she berates Cross for not taking the situation against the Akuma they were fighting seriously. She also tends to go on missions even after returning home, stating she likes the travel. She is also one of the few women to be able to repel Cross's advances, as she claims he's "useless".
Prior to becoming an exorcist of the Black Order, Klaud was a beast master in a circus. At some point she received her scar on the face. At some point she reached the critical point and became a general.
At some point, Klaud got married but her husband passed away. 
After her Exorcist team (consisting of Tina Spark, Gwen Flail, and Sol Galen) is eliminated by Tyki Mikk, Klaud returns to the Black Order HQ in order to meet with the other Generals. She is then seen paying her respects to members of her unit in the church alongside fellow General Winters Socalo. She sees that they have already been cremated and she says that at least they won't have to fight anymore. Socalo however, felt more happy to berate his former unit members. They both are then called by the Great Generals for a meeting.
Invasion of the Black Order ArcEdit
She attends the reunion held by Malcolm C. Lvellie following the events of the Noah's Ark Arc. She sits next to Socalo. When the idea of using the Noah's Ark to move is raised, she asks if they intend to give the order so that the exorcists embark aboard the ark. Socalo says he doesn't care.
Later, she is seen drinking wine with fellow General Cross Marian. Though she asks him why he chose her as a drinking partner, she does not seem entirely unwilling. She does, however, shoot down Marian's advances rather coldly. They are then interrupted by Allen Walker who drops papers on Cross.
When the Noah Lulu Bell attacks the headquarters Allen and Bookman are the only ones who can fight in the room and they end up overwhelmed. Fortunately she arrives to save the day along with the other generals, Marie, and Miranda. She teams up with Cross, Socalo, Tiedoll, and Allen Walker to mount a counterattack. She activates her Innocence and her monkey, Lau Shimin, grows huge. She sets Lau Shimin on a giant akuma which he proceeds to destroy.
Unable to defend the Akuma Egg from Lulu Bell the Generals decide to destroy it to prevent the Earl from getting his hands on it. Klaud uses Destruction Shell Lau Gunz to destroy it. She and the other Generals are then overwhelmed and paralyzed by a Level 4 Akuma that spawns in the headquarters.
Phantom Thief G arcEdit
Third Exorcists arcEdit
During the attack on the North America Branch Klaud was in Greece with her new team consisting of Lenalee Lee, Goushi and Timothy Hearst, facing off against Lulu Bell in the form of a dragon. In the anime, when Timothy fails to attack Goushi, she carries his unconscious body, prompting Lenalee to finish Goushi off.
Searching for A.W. arcEdit
In the anime, Klaud, along with the rest of the Exorcists, takes part in the pursuit of Allen Walker when he fled from the Order with the Noah. As they are ambushed by the Thirds (Madarao, Tewaku and Tokusa) and Akuma troops and Timothy joins the battle, she notes that her new apprentice seems to fight well, before activating Lau Shimin and engaging in the combat too. Soon enough, she and the rest of the Exorcists noticed that all of them were gathered by the enemy within the pentagram of flames. The Thirds confront them directly, and when Klaud and Socalo try to destroy them with Lau Gunz and Cremation Dance respectively, their attacks are easily absorbed. Then, the next wave of Akuma arrives, and the Exorcists fend them off. Klaud can be seen fighing Tewaku with her Lau Shimin.
Concludes non-canon section.
Three months after the attack on the North American Branch, Klaud is just returning from a mission with Timothy and quickly leaves to prepare for a new mission with Miranda.
Powers and AbilitiesEdit
Animal Trainer: Formerly a member of a circus, Klaud is an expert animal trainer, something reflected in her Anti-Akuma Weapon, Lau Shimin, which is a sentient animal that obeys her commands. She carries a whip into battle with her and seems to use it while giving Lau Shimin commands, though whether it has any actual effect or is simply a remnant of her days in the circus is unknown.
Lau Shimin (ラウ・シーミン, Rau Shīmin): Klaud's Innocence is a little monkey that rides on her shoulder. This parasitic type Innocence, is the first sentient, animalistic Innocence shown in the series. When activated, the monkey transforms into a monstrous simian that attacks with balls of energy that form at its fists. Klaud doesn't display this ability until the assault on headquarters by Lulu Bell. In this form, Lau Shimin shows incredible strength, speed, and agility, capable of leaping incredible distances with the greatest of ease.
- Long Range Mode : Destruction Shell Lau Gunz (破甲砲 "ラウ・ガンズ" Yabu kabuto-hō "rau ganzu", lit. translation "Artillery Shell Fracture "Lau Guns""): Lau Shimin, upon receiving Klaud's command, splits from the top of its head down to its groin, an explosive mass of energy building up in the center of this split and firing to deal devastating damage.
Major Battles Edit
- Klaud Nine and other generals VS level 3 and Giant Akumas
- Klaud Nine and other generals VS level 4
- Klaud Nine and her team VS Lulu Bell
- Klaud Nine, Exorcists and CROWs VS Level 2, 3 and Giant Akumas, Madarao, Tewaku and Tokusa
- Klaud Nine VS Tewaku
- Lau Shimin: Both her companion and her innocence, Klaud is always seen with Lau Shimin. They appear to be very close and Lau Shimin is very obedient and faithful to its master. She likes feeding Lau
- Cross Marian: They have know each others for at least 4 years though Cross was mainly traveling away from the headquarters. Cross enjoys the company of a woman with good looks like Klaud.  He likes drinking wine with her and even if Klaud acts coldly with him, she doesn't actively fend off. Klaud occasionaly cracks mocking jokes regarding Cross. 
- Winters Socalo: They seem to get along fairly well, casually talking to each others.
- Timothy Hearst: Klaud has taken Timothy as her new apprentice just after he joined the Black Order. He is his first apprentice since her last team was decimated by the Noah family. They seem to do most, if not all their missions together. Timothy looks up to his master and seems to work hard to answer to her expectations. On her side, Klaud is a strict but good teacher. She takes care of him, carrying him during the missions when he is sick.
- Klaud likes caring for Lau Shimin and blue cheese and dislikes useless men.
- Klaud shares her birthday with Suman Dark. She was born exactly one year after him.
- Klaud likes training and traveling alone.
- She carries a spare whip. 
- Klaud's name could be romanized as Cloud Nine a name coloquially given to the state of euphoria.