Hotaru is a rather hot-blooded individual. He seems to show very little care, if any, about anything besides the swords he creates. The same passion that gives him the enthusiasm and extreme dedication in creating swords is also the reason why he is easily enraged (usually in a comical fashion) he loves making swords and is extremely protective of them. mitarashi dango is his favorite food and it always calms him down even when a sword is broken. He makes Nichirin swords made for killing demons