Many titles that were under Asahi Sonorama, a wholly owned subsidiary of the Asahi Shinbun publishing company, are now in the care of its parent company.
According to a press release posted to its official website, Sonorama will cease operations and disband in September (2007) due to "a change of conditions in the publishing world and decisions made by the management."

Note: Nemuki (and plus) series should be listed as shoujo manga on MU. If you have any problem with this, please contact with the Mods. And don't change the demographics that are under one title (of magazine) as you want. Thanks.