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)

An ordinary, quiet town is shaken by a series of bizarre happenings brought about by the darkness in human hearts. There are no solutions in the real world: Only "Dream Messengers" can find the answers. Dream messengers connect the fabulous with the real and control the power of dreams. Their leader, Toko Mishima, works with 8 other messengers using the powers given by an old spell and a toy made by Toko's father. Toko, her younger sister Rinko, Hajime Tachibana, who loves young girls, and the six other Dream Messengers are given the names of days or stars - Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Raff and Keito.

The manga centers around first-year high school student Minoru Suzuki, who sometimes sees visions of his own mother's past as a high school student.

Arika Togawa doesn't understand why she has fallen in love with her classmate, Takamori Matsubue. She hardly knows him. Together they decide to find out how two strangers can fall in love.
"Why do people fall in love?" Several wonderful but strange love stories based on this eternal mystery are told in this "Truly Mysterious Love Manga."
(From Kodanclub)

Takaomi Matsubue and Arika Togawa are second-year students at the same high school. By some strange quirk of fate, they started dating. Matsubue-kun is a really weird guy (in truth, other people just don't understand him), which causes Togawa-san to ponder: "Why do I like this guy anyway? Why do people fall in love?"

They encounter a profound mystery: Tsugumi Yoshimoto, a girl who has been sleeping, sleep-eating, and sleep-walking for half a year. According to Touko and Rinko Mishima, sisters who are also well-acquainted with the structure and interpretation of dreams, this is a matter that concerns them all...

Was originally a one-shot in Afternoon in 2004 before it became a series in 2006.
One day, a strange transfer student appears before Tsubaki. Urabe Mikoto is an antisocial girl, whose hobby is just sleeping during class-breaks. One day, Tsubaki goes to wake her up and accidentally tastes her drool... And gets hooked on that!
After that, he starts going out with her and gets to know her better. Her second hobby, as it turns out, is carrying around scissors in her panties and cutting paper into flowers