"I Want to Eat Your Pancreas" is a manga adaptation of the novel by Yoru Sumino, illustrated by Idumi Kirihara. The story centers on the relationship between two high school students: an unnamed introverted protagonist and his outgoing classmate, Sakura Yamauchi. The protagonist, who prefers solitude and reading books, discovers Sakura's secret when he stumbles upon her diary, titled "Living with Dying." The diary reveals that Sakura is suffering from a terminal pancreatic illness, a fact she has kept hidden from everyone except her family.

Despite their contrasting personalities, the two form an unlikely bond. Sakura, aware of her limited time, expresses a desire to live life to the fullest and convinces the protagonist to accompany her on various adventures. These include trips to cafes, a spontaneous journey to a distant town, and even a stay at a hot spring inn. Through these experiences, the protagonist begins to open up, challenging his detached worldview and forming a deep emotional connection with Sakura.

As their friendship deepens, the narrative explores themes of mortality, the fleeting nature of life, and the impact of human connections. Sakura's vibrant personality and determination to enjoy her remaining time contrast sharply with the protagonist's initial reluctance to engage with the world. However, her influence gradually transforms him, leading to moments of introspection and growth.

The story takes a tragic turn when Sakura's life is abruptly cut short not by her illness, but by an unrelated act of violence. Her death leaves the protagonist grappling with grief and regret, forcing him to confront the fragility of life and the importance of cherishing relationships. The narrative concludes with the protagonist reflecting on his time with Sakura and the profound impact she had on his life, ultimately finding a sense of closure and purpose.

The manga captures the emotional depth of the original novel, blending moments of humor, tenderness, and heartbreak. The characters are well-developed, with Sakura's vivacity and the protagonist's gradual transformation serving as the emotional core of the story. Through its exploration of life, death, and human connection, "I Want to Eat Your Pancreas" delivers a poignant and thought-provoking narrative.