The last thing that 38-year-old erotic manga artist Hilnama expects is to be diagnosed with terminal stage IV colon cancer. Although her health seemed fine at first, a bad bout of what seems like period cramps convinces her to visit the hospital, where the doctors discover a mass obstructing her colon. With almost no time to process the news, Hilnama undergoes surgery and subsequently begins chemotherapy. Despite facing such adversity, she never loses hope and manages to maintain a cool head in the face of her grim diagnosis.

Makki Gan demo Genki desu: 38-sai Eromangaka, Daichou Gan ni Naru is an autobiographical manga chronicling the author's experiences with colon cancer. The author passed away on December 12, 2022.

The series was published in English as I'm a Terminal Cancer Patient, But I'm Fine. Thirty-Eight-Year-Old Author of Erotic Manga Has Colon Cancer by Seven Seas Entertainment on November 1, 2022.