TV-Series
Description
Dr. Hidesaburo Kitaguchi is the Soyokaze's chief medical officer, rarely seen without a bottle of sake and maintaining a substantial alcohol stash in the infirmary. He readily shares his sake with anyone who asks. Deprived of alcohol for even one day, he suffers severe withdrawal symptoms—extreme clumsiness and impaired cognitive function—that cripple his ability to work. His commanding officer permits on-duty drinking to ensure his continued function.

He exhibits a consistently laidback and unflappable demeanor. When agitated crew members, especially the highly-strung first officer, react to crises or the ship's chaos, he often advises them to relax and let situations resolve naturally. Despite his perpetual inebriation, he displays surprising perceptiveness about the crew's psychological well-being, detecting subtle behavioral shifts indicating guilt or emotional distress.

Professionally, Kitaguchi is an exceptionally skilled and insightful physician. His medical techniques, sometimes appearing crude or unorthodox, prove remarkably effective and have saved many lives. His expertise spans physical medicine and psychology. He delegates minor injuries and routine care to a nurse, focusing personally on complex cases. His medical competence remains high even while intoxicated, with suggestions he performs best in this state. He attributes his lifelong drinking habit to starting at age three.

His analytical perspective extends to the ship's enigmatic captain, leading him to famously ponder whether the captain is "a fool or an out-and-out genius," reflecting the central mystery of perceived luck versus hidden competence. His medical ingenuity was notably demonstrated after the captain suffered severe injuries, including damage from an implanted enemy mind-control microchip where conventional brain surgery was too dangerous. Kitaguchi devised an unconventional solution: synchronizing the captain's psyche with another individual's consciousness to facilitate healing from within his mind. This risky procedure succeeded, saving the captain's life and neutralizing the microchip threat.

His infirmary also functions as a refuge for crew seeking stress relief. The first officer frequently visits for tranquilizers or to use a neuro-cleansing device, managing frustrations stemming from the ship's unpredictable command structure and constant disorder.