Nio Chirinu has no parents or guardians and he jobs at his grandmother restaurant.But he is not very comfortable in this job .Nio and his sister Iroha are used to plug to catch the child by Toshizou Hijikata and Souji Okita.They are two members of group.And the name of this group is Miburo.
Neo make a great bonding with Miburo and preserve the people of Kyoto .Disappointed by his own weakness,Niro have great ability to match the swordplay of his new and fresh companion.He works hard to admit the reality by Tarou Tanaka and Hajime Saitou.He is very confident about befriend them.Nio finds his own sense of justice and become a good and strong to prevail against all his enemies.