Irma Girls' High School for the Arts

Irma Girls' High School for the Arts (イルマ女子美術高校) is a Garden in Tokyo, Japan.

Irma uses the top legion system, and its top legion is Legion Irminscínnes.

Oath of Irminscínnes
Similar to Yurigaoka, Irma has a tradition called the Oath of Irminscínnes (冠輝の誓い, Kanki no Chikai) where two Lilies will make a pledge of sisterhood. To make the oath, they exchange the "Bracelets of Irminscínnes" that they wear, and both Lilies put their bracelet on each other. These bracelets are crafted by the Lilies themselves, and are said to be fairly hard to make.

The Oath of Irminscínnes lacks some of the "common sense" restrictions typical of other oaths of sisterhood. There is no limit upon how many others one can take this oath with, with one former Lily known to have taken it with at least five people. However, taking the oath with more than two other people (typically, one Lily who is older, and one who is younger) is considered undignified. School staff can enter into the oath as well.

Trivia

 * Irma frequently holds joint activities with Kamba due to their shared focus on the arts.
 * There appears to be a naming theme among Irma's Lilies; the majority of them share their surnames with notable calligraphers.