"Dokkiri Doctor" centers around the life of Masaru Hanamura, a young and ambitious medical student with a strong desire to become a skilled surgeon. The series is set in a bustling hospital environment, where Masaru navigates the challenges of medical training, patient care, and personal growth. His journey is marked by a blend of comedic moments and serious medical dilemmas, reflecting the pressures and responsibilities of the medical profession.

Masaru is portrayed as a somewhat clumsy and overconfident individual, often finding himself in humorous situations due to his impulsive nature. Despite his flaws, he possesses a genuine passion for medicine and a deep commitment to helping his patients. His interactions with colleagues, including the strict but caring senior doctor, Dr. Sakamoto, and the compassionate nurse, Ayaka, highlight the dynamics of teamwork and mentorship in a hospital setting.

The narrative delves into various medical cases, each presenting unique challenges that test Masaru's skills and resolve. These cases range from routine procedures to life-threatening emergencies, showcasing the unpredictability and intensity of hospital life. Through these experiences, Masaru learns valuable lessons about empathy, professionalism, and the importance of continuous learning.

The series also explores the personal lives of the characters, providing insight into their motivations and struggles outside the hospital. Masaru's relationships with his peers and mentors evolve over time, reflecting the growth and development of his character. The blend of humor, drama, and medical intrigue creates a compelling narrative that captures the complexities of the medical field.

Overall, "Dokkiri Doctor" offers a balanced portrayal of the medical profession, combining lighthearted moments with serious themes. The series effectively highlights the dedication and perseverance required to succeed in medicine, while also emphasizing the human connections that underpin patient care.