Ayame Garden (あやめ園 Ayame-En) is an orphanage in Ayamegaoka. This is where Kakeru Satsuki, Kukuri Satsuki and Yuka Minase used to live when they were children. In most realities, the orphanage was closed down after a certain event where the children, under the effect of magic, went on a killing spree and killed each other.
In Kukuri's timeline, Ayame Garden is directly connected to the Mamiya Neuroscience Laboratory, a facility that deals with researches on young espers. The orphanage is entrusted with gathering homeless children who possess special abilities so that they can be experimented on later.