Not so long ago, Chthon tried to break free from his prison in the Other-Realm, but the Scarlet Witch absorbed the Darkhold and imprisoned the dark lord within herself. Agatha Harkness has stolen Chthon's heart from Wanda's prison to create her own Necronomicon by harnessing chaos magic. For her latest challenge, she pits Moon Knight against the reformed hero Taegukgi, letting chaos take hold of their minds. Written by Jed MacKay with artwork from Creees Lee, colors by Arif Prianto, and letters from VC's Cory Petit, Moon Knight Annual #1 makes the contest a Godly clash. Meanwhile, the Contest of Chaos backup, by Stephanie Phillips and artists Alberto Foche and Raúl Angulo, tests the tense waters between Agatha and the mysterious Korrosion.
Source:https://www.cbr.com/moon-knight-annual-1-review/