You Keika, the heir of an old famous family of Exorcists, is stricken with poverty after losing his parents and struggles as a street fortune teller and a part time computer tech. One night at a junkyard, he meets a mysterious and charismatic Exorcist, Tanmoku Ki, who is fighting an evil spirit. To compound his misfortunes, he gets hit by car and becomes a ghost. Tanmoku Ki appears and asks You Keika to make a “pact” with him to fight Evil Spirits together. Here starts the friendship of our heroes!
 
(Source: Crunchyroll)
 
Note: This series was originally released in Chinese as an ONA between June 21, 2016 and November 1, 2016. There were 20 episodes at 14 minutes each. A Japanese dub was then produced by Haoliner's Japanese branch, Emon, which aired on TV in Winter 2017 under the title Spiritpact. Each TV episode was comprised of two ONA episodes with minor aesthetic touch-ups. Thus, the Japanese (and Crunchyroll-licensed) version has 10 episodes at 24 minutes each.

Episode 1 - Suddenly, a Pact with a Spirit?

Episode 2 - What Attracted You to Him?

Episode 3 - Beware of Sleeping Together!

Episode 4 - What I can do to protect you

Episode 5 - Forever Together With You

Episode 6 - A Kind Sigh

Episode 7 - Unbeatable Spirit

Episode 8 - Turbulence with a Chance of Dilemma

Episode 9 - The Final Decision

Episode 10 - Never Let Go, Never...

Haoliners Animation