|Dates are from the Isawa Calendar|
|Centuries:||11th century - 12th century - 13th century|
|Years:||1175 1176 1177 - 1178 - 1179 1180 1181|
- Mantis Clan Champion Yoritomo Naizen orders Moshi Eihime and Yoritomo Utemaro to solve the complaints of Lion Clan Champion Akodo Shigetoshi about the Mantis involvement during the Battle of Toshi Ranbo.
- Yoritomo Naizen, the Mantis Champion, dies at sea.
- Akodo Shinjiro becomes Lion Clan Champion after his father Akodo Shigetoshi resigns.
- The Chuda betray their Spider lords, who chase them. The Mantis and Unicorn agree to assist the Spider in hunting the remaining Chuda.
- The Gyushi vassal family is founded.