User blog comment:Teien/Yuki Shiroshiki (Walpurgisnacht)/@comment-4867780-20150314124159/@comment-4867780-20150314125013

"a distant future in which the Immortal Garden has been disbanded after a series of loses at the hands of Zero Insomnia. She goes to the past to join the Immortal Garden to protect them from Zero Insomnia."

...

Yep ^ ^;