-Fact 1 from Tite Kubo himself
"Missions, editorial duties, guitar practice, etc. - all these activities keep him busy all day, but he is still a reliable youth, providing much support to the 9th division."
Shuhei has short, dark hair and wears sleeveless Shinigami robes, has the number "69" tattooed to his left cheek and has a set of three scars straight over his eye and down his right cheek, gained during a past Hollow attack.
He also has a blue, stripe tattoo running across his left cheek and over the bridge of his nose over the 69.
He wears what appears to be a choker around his throat, and a matching armband on his right arm which have proven to have explosive properties as shown in his fight with Findor Carias.
He has his lieutenant insignia tied to his left arm. He resembles Ichigo Kurosaki and Kaien Shiba to an extent, though the resemblance is obscured by Hisagi's scars and tattoos.
Shūhei is an extremely mature and calm individual, a state that is slightly at odds with his somewhat punk-like appearance. He usually takes responsibility, and tends to avoid violence when possible. He seems to be virtuous, much like his captain's image; their views often coincide until it is revealed that Kaname Tōsen is a subordinate of Sōsuke Aizen. He is often seen in the company of Renji and Izuru.
He apparently comes from the lower class, but when he is pressed for cash, he will rely on any free food source available, including one provided by someone as obtuse and snotty as the lieutenant of the Second Division, Marechiyo Ōmaeda.
181 cm (5'11")
67 kg (148 lbs)
Approximately 100 years before the current story line, a younger Shūhei is seen, along with other children, escaping from a Hollow attack in Rukongai. Not long after, they are saved by Kensei Muguruma and the 9th Division. After being saved from the attack, Kensei tries to cheer Shūhei up (albeit with a slightly scary, demanding manner) and asks his name. As Kensei and the others continue their work, Shūhei sees a tattoo of the number "69" on Kensei's chest, which gives him the inspiration to get the same tattoo on his cheek.
Kazeshini (風死, Wind of Death): In its sealed form, it looks like a regular katana with an octangular tsuba. Shūhei has been seen carrying his Zanpakutō both at his waist and on his back.
* Shikai: Kazeshini's Shikai command is "Reap" (刈れ, karire). When released, it takes the form of two Kusarigama-like weapons, each with two blades curving both directions, connected by a long chain. While in this form he is highly adept at swinging the chain in a large circle, and then whipping it forward to entangle an opponent's sword, or other weapon, or immobilizing his arms or legs. Although he dislikes the shape of his weapon because it is shaped like something meant to take life, he is extremely proficient in wielding them; he uses them as projectiles and controls them at range through moving the chain to make the weapons' paths unpredictable.
* Bankai: Not Yet Achieved