武器に契約破棄されたら健康になったので、幸福を目指して生きることにした (Associated Names)

Differing from elves and beastmen, humans cannot use magic. Due to this peculiarity, they have mana stored inside their body. If the mana present inside is too large, they will be afflicted by an illness called Mana-Poisoning. Suffering from this disease since childhood, I was unable to perform much physical activity. My family was the…