BonIzu

BonIzu is the het ship between Ryuji Suguro and Izumo Kamiki from the Blue Exorcist fandom.

Canon
Ryuji, who commonly goes by Bon, and Izumo met when they attended Cram School at True Cross Academy, so they could learn how to become exorcists, and had bragged their childhood friends into it with them. Izumo and Bon didn't talk to each other during or after class, as they both get to their small groups of friends who they have known since they were children in their home cities. Until P.E. when Izumo heard Bon say that he'll beat Satan, which causes Izumo to snigger at Bon's impossible goal and says her thoughts about it outload while he was standing in front of a Reaper that attacks him when Izumo's harsh words got to him; but Rin Okumura manages to save Bon from the grog-like demon while Izumo watches them yell at each other before they joined the rest of the class. After a Naberius attacks Izumo and her friend, Noriko Paku, at the abounded Boy's Dorm during their Training Camp there, before Bon and his friends rush into the room to see what had happened to them, the event troubled Izumo as she wasn't able to protect her friend and wasn't able to fully resign the requested scripter while Bon did very well to resight his.

Fanon
Even though Bon and Izumo but heads with each from time to time and act more like frenemies when ever they begin to fight or try to get the best of each other, it hasn't stopped fans from shipping them together. As there have been times where they have shown concern for each other, even when danger and attacking demons are involved in those moments, and whenever their friends are in danger Bon and Izumo turn to each other for help. Those small moments and working together as team with the rest of their friends and classmates helps to give the ship support.

On AO3, the ship has 11 fanfics, while fanfiction.net has 42 with only 22 placed under pairing. Along with the ship having a reasonable size fanbase on Tumblr.

Fandom
FAN FICTION
 * Izumo/Bon tag on FanFiction.net
 * Izumo/Bon tag on FanFiction.net
 * Izumo/Bon tag on FanFiction.net

TUMBLR

Trivia

 * Izumo is training to become a tamer and has two familiars who originally belonged to her mother, while Bon temporally formed a contract with his father's familiar that who kept secret from others until it was time to pass the Phoenix demon onto the next Suguro.