Aiha (藍巴) is one of Bishamonten's Shinki. As a Shinki, she takes the form of a medieval suit of armour with a long skirt. 

The second season of Noragami. 
 
Life for minor god Yato isn't getting any easier. He's still broke, shrineless, and his partner-slash-sword-regalia has zero respect for him. Worse yet, Bishamon, one of the deadliest war gods, is after his life. Blaming him for the death of her past regalia, she won't stop until she kills him. But there's more to that story than she could ever realize. And as if that's not bad enough, there's someone working against her behind the scenes! Can Yato take on a god as powerful as Bishamon? Or will things take a more dangerous turn? 
 
Between all of this godly drama and even more dangerous battles, Yato still needs to figure out how to help Hiyori. But all options lead to losing her, and he's not willing to make that choice – no matter what. 
 
Five yen doesn't even begin to cover his trouble! 
 
(Source: Funimation)

Yato is a homeless god. He doesn’t even have a shrine, not to mention worshippers! So to achieve his ambitious goals, he’s set up a service to help those in need (for a small fee), hoping he’ll eventually raise enough money to build himself the lavish temple of his dreams. Of course, he can’t afford to be picky, so Yato accepts all kinds of jobs, from finding lost kittens to helping a student overcome bullies at school.
 
(Source: Kodansha USA)

Hiyori Iki is excited to start high school alongside her two middle school friends, but "Delivery God" Yato seems to have other plans for the day. Will Hiyori be able to make a good impression on her first day? Or will Yato cost her a happy high school life? 
 
On another day, Hiyori decides to take advantage of the beautiful weather and invites a number of people to gaze at the cherry blossoms, including the fearsome combat god, Bishamon. But how long will their blissful day last when Yato and his old rival Bishamon start to drink together? 
 
(Source: MAL Rewrite) 
 
Note: Bundled with the 10th and 11th limited-edition volumes of the manga.

Hiyori Iki goes on a skiing trip with her parents and happens to bump into Yato and Yukine. After a short while, they find the other gods who are there for a company vacation. But amidst all the fun, someone is plotting a heinous crime, and Yato is the primary target. 
 
On a different day, Yato’s been able to make a small fortune from his last job and decides to take Hiyori and Yukine to Capyper Land. Although she agrees without knowing the destination, will Hiyori actually enjoy the day considering what happened on her last visit? 
 
(Source: MAL Rewrite) 

Bundled with the limited editions of the 15th and 16th volumes of the manga.

An animated music video for the full song Nirvana by Tia. Bundled exclusively with the single, this music video has completely unique animation, which features the cast of Aragoto in a colorful fashion.
 
Note: This entry is not for the anime ending animation seen in Noragami Aragoto's ED credit sequence.