You were on your way to becoming an elite cardiovascular surgeon after graduating from medical school. Yet, just before getting your specialty qualification, you were sent off to a remote rural town in Kyushu. Now practicing as an internal medicine physician. Feeling dejected by what you sees as your sudden demotion, You spends your evenings drowning his sorrows, until one night, while you were drunk and crying, a yakuza named "Tenjun", rescues you.