"Kakukaku Shikajika" is a semi-autobiographical manga that chronicles the life of Akiko Hayashi, a young woman navigating her journey as an aspiring manga artist. The narrative begins with Akiko reflecting on her high school years, where she struggles with indecision about her future. Her life takes a pivotal turn when she enrolls in an art class taught by Kenzou Hidaka, a gruff and demanding instructor who becomes a significant influence on her. Hidaka’s unconventional teaching methods and harsh critiques initially frustrate Akiko, but over time, she begins to appreciate his dedication and the lessons he imparts about perseverance and discipline in art.

The story alternates between Akiko’s past and present, juxtaposing her youthful struggles with her adult life as a successful manga artist. Through flashbacks, the manga explores her formative years, including her friendships, romantic interests, and the challenges of balancing her passion for art with societal expectations. Hidaka’s mentorship remains a central theme, as his tough love and unwavering belief in her potential shape her artistic identity. The narrative also delves into Hidaka’s personal life, revealing his vulnerabilities and the sacrifices he made for his students.

As Akiko matures, she grapples with the realities of adulthood, including the pressures of the manga industry and the loss of loved ones. The story poignantly addresses themes of growth, regret, and the enduring impact of mentorship. Through its candid portrayal of Akiko’s experiences, "Kakukaku Shikajika" offers a heartfelt exploration of the struggles and triumphs inherent in pursuing a creative career, while paying tribute to the individuals who leave a lasting mark on one’s life.