Azure Chronicles: Crusade of The Spirits

On The Floating Continent, Kalikose, the most important things to the society under the shogunate commission are the Oracle Shogun's divinations and one's ability to form a pact with a magical creature. Ever since ancient times, when the continent was fully cut off from the outside world, the most prestigious of contacted creatures a person could acquire were known as spirits, thanks to their unique property of creature Spirit Mana with their wielder that allows for the easy dispatch of the continent's most percistent threat, the yokai.

Although it is unclear why the tradition of people having familiars is so strong that it has influenced non-combat related fields, one thing is for Solus Sakamoto. Given the common sense of how spirit contracts work, he'll have to put up with the constant hounding from his classmates for having a spirit pact with the female spirit Nebula, which was made exponentially worse with every subsequent spirit he makes an active pact with as normally you'd only be able to one active pact at a time.