KazuBisha

"I don't need any other Regalia! The only one I need is you, Kazuma!"

- Bishamon to Kazuma

KazuBisha is the het ship between Bishamon and Kazuma from the Noragami fandom.

Canon
Kazuma has been Bishamon's shinki ever since the Ma Clan, he was the only survivor of the slaying of the Ma Clan due to him hiring Yato, who was known to be the God of Calamity of that time in order to in order to kill them as the former shinki clan has been badly stinging Bishamon due the point she was at the brink of death. After the murder of his former clan, Kazuma and Bishamon were the only survivors (not counting Yato). She cries to Kazuma and tells him he's the only shinki she needs.

Years later a new clan is formed and called the Ha Clan, Kazuma becomes the lead shinki of the clan. Despite Yato killing the former Ma Clan. Bishamon and Yato become enemies and Bishamon unknowingly knows that Kazuma was involved of the assassination. Ever since Yato has gained a new shinki he gets badly stung by him and Kazuma has to attend the ablution in order to save Yato. Eventually Bishamon finds out of his involvement by one of her shinkis, as she learns the truth, Kazuma tells Bishamon that Yato isn't an enemy but a savior as he saved her life from being eaten by a phantom due the Ma Clan badly blightening her. Bishamon is hurt as she tells him he betrayed her, Bishamon fires a bullet towards Kazuma before he blocks it off with a borderline, which is known to be disrespectful to draw a borderline against your master. She was unsure to revoke his name but instead chose to exiled him and telling him she wouldn't care if he was a stray, however Bishamon is shown to be upset over her choice as stated by one of her shinkis.

Kazuma gets kidnapped by one of the shinkis in the Ha Clan named Kugaha, eventually he escapes with Hiyori (who as well was kidnapped) and heads to Bishamon, suddenly he is slashed by her as he pushes Yato out of the way. Kazuma caressed Bishamon's face filled with blight, he pulls her into a hug and tells her the truth of the Ma Clan and how it wasn't the fault of Yato but his instead. Bishamon begins to cry and blush at Kazuma's words until Kazuma collapses and passes out, Bishamon wails while holding onto Kazuma.

As Kazuma is heavily injured from the slash he dreams about the Ma Clan as well when Bishamon was dying, as she laid there dying she requested if she were to die will he like to be her regalia again (as Bishamon will be reborn if she did), without answering her question he runs out to find Yato as he promised to protect his master. After his dream, he wakes up where Bishamon is seen taking care of Kazuma and Kazuma comments on how Bishamon looks healthier after getting blight. Kazuma tells Bishamon if he could release her as he believes he disgraced her twice and doesn't deserve to be her regalia, but she tells him it's alright as well if he can be her guide but Kazuma continues to believe he'll get her only lost, which Bishamon tells him he's human and he's allowed to make mistakes.

When Kazuma was with Yato, Kazuma begins drinking in which he gets drunk and comments how he loves Bishamon.

Fanon
It's known to one of the most popular ships in the Noragami fandom, despite gaining popularity this ship rivals BishaYato, another popular ship for Bishamon. In AO3 it's the second most popular ship, behind Yatori.

Trivia

 * Veena (short for Vaisravana), is one of the pet names Kazuma gives to Bishamon.