Hotaru Jainu

Shinjo Jainu was an Emerald Magistrate of the Unicorn Clan who eventually was granted his own clan, the Firefly Clan, and family, the Hotaru, as Hotaru Jainu.

Emerald Magistrate
In 1136 Jainu was a young Emerald Magistrate assigned to a tower overlooking the sea along the shore between Otosan Uchi and the Phoenix lands. Due to the size of the territory he had to patrol, Jairu hired ronins with his own salary, creating regular patrols in the area.

Firefly Clan
In 1152 Jainu's men pushed back a small invasion force of allied Yobanjin tribes that had their ships pushed there by a storm. The barbarians were destroyed with the aid of Seppun reinforcements. The Emperor Toturi I granted Jainu his own Minor Clan. Jainu named it the Firefly, for the fires they had maintained along the coast, and took the family name Hotaru from Jainu's father, Shinjo Hotaru.