Forestize is the event where the Shinju-Sama deploys the heroes for battle in an alternate layer of reality.
First, the heroes get a message on their phone that warns them of the event, with a small text reading "Vertex approaching. Deploy to protect humanity.". Time then stops for a moment, save for the chosen heroes, and a rainbow-colored light envelops the land. Rainbow water spills over the hills (or the ending of the barrier) and a bright light ensues. The heroes then find themselves in the Jukai dimension where the Shinju-Sama resides.
- During the early days of the Vertex invasions, the Jukai was not as overgrown as it is now, as noted by Nogi Wakaba's surprise in seeing it so overgrown when she and her team were summoned to intervene with the conflict between the Earth Gods that comprised of most of the Shinju, and that of the ex-Sky Gods who also aided in strengthening of the barrier.
- The Shinju is the only barrier among others in the early days that actually HAD the process, whereas, in other barriers, the ordinary people merely froze in place during a vertex attack.