|First Appearance||Episode 1: Mutsuki|
|Previous Owners||Toyotomi Hideyoshi
Nikkari Aoe is a wakizashi touken danshi residing within the citadel in Touken Ranbu: Hanamaru.
Nikkari was forged by Aoe Sadatsugu in the year 1207. At some point he was owned by Toyotomi Hideyoshi and Nakajima Shuuridayuu.
A legend goes that Nikkari was used by Nakajima who was heading off to fight a monster, but he ended up coming across ghost mother and child instead, using Nikkari to slash through them.
Touken Ranbu: Hanamaru
Nikkari appears to have been at the citadel for some time before Hanamaru begins.
Nikkari is chosen as part of the away team to Ikeda Inn under Yamatonokami Yasusada, who was chosen as captain despite it being his first sortie. Nikkari came out relatively unscathed, but witnessed Ishikirimaru get into a comedic predicament because of the dangerous length of his sword, relaying it to the team upon returning.
- Nikkari's name is a sounds similar to the word for creepy grinning (nikkori). This name was given to him in reference to the creepy smile of the ghost Nakajima Shuuridayuu came across while wielding Nikkari. In the Touken Ranbu game, this causes him to believe he has a weird name.
- Nikkari is also shown to be fond of a golden ball which he claims keeps him warm during chilly days.