This episode highlights the darker side of Shu and Kisara's contract. Shu is not just paying with memories; he is actively manipulating his own psyche to turn himself into a remorseless killing machine. By deleting his affection for Miles, he effectively erases the pain of betrayal at the cost of losing a piece of his own humanity. Leaving himself with a memento-style note written on his hand acts as a grim reminder that he is willing to hollow himself out to achieve his goals.
The big bad demon pulling the strings is Asmodeus, who is tied directly to Shu's mother. Engage Kiss Episode 9
The person Shu trusted most in the world, his foster father and mentor Miles, is revealed to be the Demon Agent. This episode highlights the darker side of Shu
The explosion at the mine that destroyed Shu's family was actually triggered by his biological father in a desperate attempt to stop his children from being used as demonic weapons. 🧠 The Psychological Horror of Memory Loss Leaving himself with a memento-style note written on
In a classic, tragic twist, Miles didn't betray Shu out of malice. He sold his soul to Asmodeus to save his own dying daughter.
Beyond the fight with Miles, the episode drops several bombshells that reframe the entire plot of the show: