Squad 13 (13th Devision)

13th Division, Defensive Tactics & Seireitei Protection
The 13th Division is the ones that actually send out patrols on a daily, frequent basis to survey Seireitei. If a threat occurs, they find and take care of it, sometimes with help from other divisions. They also work together with various divisions.
If a threat is a large enough, the 13th Division is in charge of sending out shinigami, assembling them, assigning them duties, and other things. Their job is similar to the 10th, except on a smaller basis.

Isshin Kurosaki
Isshin Kurosaki (黒崎 一心 Kurosaki Isshin?) is the father of Ichigo Kurosaki. He was a Soul Reaper up until twenty years before the current Bleach storyline, after which he began residing in the human world. What he did as a Soul Reaper and why he left remains unknown, though he is seen wearing what appeared to be a captain's haori over one shoulder.[38] Also he seems to know about the Visoreds (the Masked Army). His zanpakutō is called "Engetsu" and has similar powers, even having the same shikai attack "Getsuga Tensho", as Ichigo which brings to question the relationship between his and Ichigo's zanpakutō "Zangetsu".[39]
He's tremendously powerful, being able to send Aizen flying by simply flicking his finger. It is implied that he has used the final getsuga tensho and lost his powers though its still unknown whether this is true. He lost his wife to a hollow which escapes numerous times and is later defeated by Isshin.

nice intro and interesting info. but ya still cant spy on bathing chick. lol