Mizu Wakusei Nendaiki (Aqua Planet Chronicle) series.
Pursued by the mob, a young child seeks the protection of White Dragon, a deadly assassin with the ability to disguise his gender, and kill using... water.
In the year 2000, a Chinese nuclear experiment went wrong mid-transit, resulting in Japan falling into ruin. Those that survived were housed in Japanese based American military facilities to escape from the deadly radiation and learned to live following regimented lives of labor and learning. To relieve the boredom, a recreational drug called "Zero" was created and sold illegally. Taking the drug induced a dream filled sleep where people saw their lives as they were in the year 2000. And in the cases of those who hadn't been born before 2000? The most they could surmise is that they saw who they were in their past lives. But it seems there's something is brewing below the surface and those past lives may just hold the answer.
[From DMP]: The Kourenji Family, a wealthy Japanese empire, is looking for an heir to its massive family. The two candidates, Karou and Ryuugo, are fighting to succeed as the next heir. But as they two pit their strength against each other, Kaoru starts to show another side of himself. It seems he might be more interested in winning Ryuugo than the family fortune.
From Liquid Passion: An interesting look at Hikaru and Yuki after the events in Rules volume 3. This booklet was a special mail away item from Chara for purchasing Rules v1-3 as they were published. Whimsical story about Yuki and an alien (maybe)...
From Viz: Choko Kuze is the sensible daughter of a venerable family who went bankrupt. She joins a real estate company as an entry-level office worker, but her eccentric boss is harder on her than anyone else in the company! After hearing him inadvertently call her "milady," she realizes he was the young servant boy she knew as a child. At work he's a tyrant, but after hours he insists on treating her like a lady of the nobility. Is romance even possible for a couple locked in such a crazy role reversal?
Takes place before and includes characters from another Yazawa manga - Paradise Kiss. From Anime News Network: Mikako dreams of being a fashion designer, so she sets her eyes on attending Yazawa Arts with her childhood friend Tsutomu. But, he looks like a famous rock star and attracts more attention than she'd like, especially from a popular upperclassman. Incapable of dealing with her own feelings towards Tsutomu, Mikako devotes all of her time to a new 'flea market' club she's created with her friends on campus. But, it seems to bring her more into contact with Tsutomu than ever before. Cameos include Yazawa herself and characters from her previous works. [From ShoujoMagic]: Ever since he was small, all the girls in the neighborhood have fawned over Tsutomu Yamaguchi, whose name came from a song and whose adorable face closely resembles the monkey character Monchichi's. Even back then, it was enough to make his friend and neighbor Mikako sick. Now that he's a little more grown, Tsutomu looks like the lead vocalist of Manbou, Ken Nakagawa (Midori friend/boyfriend from Tenshi Nanka Ja Nai; we meet main characters from Tenshi on market/fest), and that makes him even more popular with the ladies. But Mikako--now a trendy teen with modern sensibilities--couldn't care less. Or could she...? Gokinjo Monogatari is a sharp-witted and stylish slice-of-life story!
Oneshot from Kyoushi mo Iroiro Aruwakede Kunihara Sensei is a handsome college prep teacher who is used to fending off the advances of his female students. But adorable and shy Kakei appears to have a crush on sensei too, only he won't admit it. As Kunihara tries to find a way to deal with male student admiration, he finds himself more and more interested in Kakei.
From Ai's Bookshelf: Akira Tsubakiya has spent her whole life being told she looks like a boy. She’s super tall, she has a flat chest, and she’s not girly at all… In middle school, she made a promise with a boy who went to her cram school, Haru— a promise that they both would aim to get into the same high school, a prestigious academy. Haru told Akira that he likes girls with long hair, and since she started to fall for him, she grew it out. Now she’s graduating from middle school, and has decided to confess her feelings to Haru. Unfortunately, she finds out that he has a girlfriend—a super-cute, girly, long-haired girlfriend! Akira runs home and chops off all her hair, deciding that there’s no point to trying to be girly. Fast forward to Akira’s first year in high school. She still wears a skirt, but she wears the top half of the guys’ uniform to school. She’s called “Prince Akira”, and all the girls are infatuated with her. Akira hasn’t seen Haru in a while, but she does bump into Haru’s “girlfriend”… who she discovers to be in fact a boy!
Three years ago Ikari Kousei was out on the street with no place to go. Novelist Kiminari has a thing for stray cats, so he picked up the young vagrant.
No taste in life! Kwon Do-hyeok, a chaebol man with appearance, wealth, ability and fatal charm meets Lee Eun-chae, a free singer-songwriter who completely disarms him. His father's new interest in his complicated private life... is this woman? Do-hyeok's blatant plot to uncover Eun-chae's identity begins!
energy is coming back into the world, and ghosts are running rampant. An ordinary young man, Fang Zheng, chances upon a scripture of human skin that can perform miraculous things. The Gray Qi the scripture uses to upgrade objects also has strange origins. In order to survive in this world of ghosts, Fang Zheng takes a giant step onto a road filled with hilarious ghost-busting capers. Shearing wool from the body of a ghost, carrying out a demolition at the scene of a murder… It’s horrifying and humorous — and you’ll laugh as you scream!