After her husband's mistress survives a violent outburst, a deceased teacher hires the I.M.P to finish the job, only to encounter a far more bizarre threat.

In an attempt to get Blitzø's attention, Stolas unnecessarily hires the I.M.P to work as bodyguards for him and his daughter, Octavia, while they visit Loo Loo Land, an amusement park in the Greed Ring.

Blitzø discovers that his reserved, sole parking spot has been stolen by his ex-girlfriend, succubus and famous pop star Verosika Mayday. He and the rest of the I.M.P attempt to get it back by challenging Verosika to a "demon duel."

An eccentric inventor killed by an experiment gone wrong hires the I.M.P to assassinate his now elderly business partner, only to find that he's being talked out of suicide by a rival organization.

Stolas invites the I.M.P to attend the Harvest Moon Festival, an annual event taking place in the Wrath Ring that is overseen by him. However, unbeknownst to our protagonists, an insidious plot will be transpiring there.

While on Earth, Blitzø and Moxxie are captured by demon-hunting government agents. To escape, they must fight, and come to terms with their inner fears in the process.

Moxxie and Millie celebrate their first anniversary at Ozzie's, a club in the Lust Ring. Blitzø wants in on the action, but since the club is couples only, he has no choice but to invite Stolas.

In a flashback to 25 years in the past, Stolas meets Blitzø, who becomes his first friend. Flash forward to shortly before the present, and they meet again for the first time since on a night that kickstarts their monthly arrangement.

In an effort to watch Azathoth's tears descend onto Earth, an event that Stolas promised to take her to but forgot to, Octavia steals his grimoire from the I.M.P's office to do so but ends up getting lost in Hollywood.

The I.M.P are invited to meet a mysterious figure offering them a vague job. Upon arrival, Moxxie realizes that he is far more familiar with the place and the figure than he'd like to be.

When Striker kidnaps Stolas, Millie and Moxxie must rescue him while Blitzø takes Loona to the vet.

Loona goes to a hellhound party in the Gluttony Ring, but after things don't go the way she planned, she asks Blitzø to join.

Due to Blitzø being preoccupied, Moxxie takes an opportunity to lead a mission for the first time, in which he and Millie travel to Earth to investigate the death of a camper and kill the culprit.

Upon being abducted by Crimson and Striker so that they may be used as ransom, Blitzø and Fizzarolli are forced to confront each other over their mutual hatred for each other following the explosive ending of their childhood friendship.

Fizzarolli participates in Mammon's annual clown pageant, which he has done every year since Mammon began hosting them and won in each of them. However, with the help of Asmodeus and Blitzø, he realizes that things need to change.

On Earth, the Cherubs partner with the D.H.O.R.K.S. after being captured by them and discovering their mutual disdain for the I.M.P. Meanwhile, in Hell, Blitzø prepares for his monthly meeting with Stolas.

After Blitzø and Stolas' transactional relationship finally comes to an apparent end, Blitzø attempts to make things right with those who he has wronged in the past.

Millie helps Blitz deal with his NOT-breakup and things happen. WARNING: Happy Halloween.

When Andrealphus learns that Blitzø has been illegally accessing Stolas' Grimoire, I.M.P. is arrested and put on trial, where they must defend themselves against the court's harsh accusations.

Stolas tries to contact Via. Sinsmas starts.