|"Zao-senpai! Wandervogel, fight-, oh!"
"Ah, Durgaaa! Fight'o, yeah!"
The Shinjuku Academy Wandervogel Club is about to get a new member! Although she's a member of the track and field team in another school, she participates in a surprisingly high number of club activities as part of her alpine training. Both of them were born in the mountains and have "Roles" to play in the mountains. The third eye, which is usually closed, shines on their foreheads in a sign of indignation. However, the two have one more important thing in common. It is an existence born from the union of different people, complementing each other. For Durga, it is the spirit tiger Dun, who was once the rider of Deva Loka. A being in which multiple "Roles" have coalesced is capable of wielding multiple "Rules".