Discommunication: Seirei-hen

Takaomi and Arika meet a young girl named Tsugumi Yoshimoto who has been asleep since an incident that occurred when she was a child. What happened in her past? And can she be cured? The couple try to solve this mystery with the help of the Mishima sisters -- Toko and Rinko, who are 'Yumetsukais' (dream messengers) with the uncanny ability to control dreams. What is the truth behind this mystery?
This is a prelude to Riichi Ueshiba's next work, "Yumetsukai." The Mishima sisters make a comeback as main characters in "Yumetsukai."
(from Kodan Club)