"Shisei" is a psychological horror manga that explores themes of obsession, identity, and the blurred lines between love and possession. The narrative centers around a young man named Yoshioka, who becomes entangled in a disturbing relationship with a mysterious woman named Sae. Sae is a tattoo artist with a haunting past, and her tattoos are not merely decorative—they are imbued with a supernatural power that binds the wearer to her will.

Yoshioka, initially drawn to Sae by her enigmatic allure, soon finds himself marked by one of her tattoos. This act binds him to her in a way that transcends physical connection, as the tattoo begins to exert control over his thoughts and actions. As their relationship deepens, Yoshioka becomes increasingly aware of Sae's dark history and the tragic events that shaped her. Sae's tattoos are revealed to be a manifestation of her inner turmoil and a means of exerting control over others, a coping mechanism for her own feelings of powerlessness and loss.

The story delves into the psychological unraveling of both characters as their connection grows more intense. Yoshioka struggles with his growing dependence on Sae, while Sae grapples with her own guilt and the consequences of her actions. The narrative is punctuated by moments of visceral horror, as the tattoos take on a life of their own, twisting the bodies and minds of those who bear them. The line between victim and perpetrator becomes increasingly blurred, as both Yoshioka and Sae are shown to be complicit in their shared descent into madness.

Supporting characters, such as Sae's former clients and Yoshioka's acquaintances, serve to highlight the destructive nature of Sae's tattoos and the far-reaching consequences of her actions. These characters often meet tragic ends, further emphasizing the themes of control and inevitability that run throughout the story. The manga's pacing is deliberate, with a focus on building tension and exploring the psychological states of its protagonists.

"Shisei" is a dark and unsettling exploration of human relationships, power dynamics, and the lengths to which individuals will go to assert control over their own lives and the lives of others. The narrative is tightly woven, with each chapter contributing to the overarching sense of dread and inevitability. The characters are complex and morally ambiguous, making it difficult to assign clear labels of hero or villain. The story's conclusion is both haunting and ambiguous, leaving readers to ponder the true nature of the bond between Yoshioka and Sae, and the extent to which they were ever truly in control of their own fates.