As the autumn season draws to a close, Chidori Yoshino, a Strega member, kidnaps Junpei Iori. In parallel, Makoto Yuuki and the Specialized Extracurricular Execution Squad (SEES) vanquish the Arcana Hanged Man. The tranquil facade shatters when a charismatic newcomer, Ryouji Mochizuki, joins Class 2-F at Gekkoukan High School. Despite thinking they've achieved victory, SEES grapples with the lingering threat of Tartarus and the Dark Hour. As SEES wrestles with inner turmoil and questions their purpose, the truth behind Aegis's animosity towards Ryouji unveils amidst Makoto and Junpei's journeys of self-discovery.