Rui can't catch a break... Her life was turned on its head when she was transported to Roots, a world full of monsters, demons, and magic. Thankfully, she was able to awaken the powers of Sol within her and save that world from destruction! Alas, she had only just returned to her world after saving that one, and now monsters are attacking her town and kidnapping people!

Following the trail, she stumbles upon Tuberoth, a demon who only seems innocuous on the surface... He promptly traps her in a nightmare world made of illusions, a deadly game with her freedom at stake! Can she step up to the task and awaken from these terrible nightmares?