It’s about school life and there are three girls and three guys but only the first guy and girl are introduced in the first chapter. The girl, Taeko, even forgets her own friends’ names, and the guy, Ushio, is also an airhead. They make a cute couple. (From B-U)

Cecile wakes up one morning with a boy from her university beside her. Exactly how much did they drink last night? And now what are they going to do

Hayasaka is a mangaka who just turned in his last manuscript to his editor, Sakurai. Somehow, she loses it before submitting it.

Last story "twikle" is about a crossdressing ghost boy trying to help a friend get the girl he is interested in.

At the convenience store, "Rubbers 7", the owner, small-time yakuza leader Tounomoto Munenori, has a mad devotion to the sport of table tennis -- so much so that he'll challenge shoplifters to a match. They win, they go free. They lose, they have to work for him at lousy rates. Needless to say, he's a very good player. But one girl, Soeno Natsuki, changes the rules on him...

On one side, we have a guy living a boring and meaningless life meets Touko, a pretty girl, and it turns his life around. They get married, but three months later she tells him she is an alien from a far away planet, and that she must return to her home planet in a few days. Is she making excuses? Is she really an alien? Will he let their marriage end so easily?
On the other side we have Honda Haruno, a girl which has absolutely no other recollection other than being "sent" by her superiors to gather information about humanity; as a secret agent she needs to do her best as to learn as much as she can about society without giving away her true nature.... However on her first day of school she meets this boy "Isuzu", who has extensive information about UFOs, invaders from other space & related topics... Haruna not only is surprised to see that her cover has been blown out right from the start, but also she must know how this Isuzu fellow knew about her. Even though they don't realize it; Haruna and Touko are actually neighbors in the Akatoki Hoshi Residence... but, Is this all?

What happens when there's a guy and a girl in a apartment?

(Source: Blue For)

Back in high school days, Makoto fell for Natsume (a glassed, short-haired girl) at the first dialogue with her. He even applied for a less competitive major of the same college just to be with her, but unfortunately she was not admitted. Makoto helped Natsume to retake the exam and the two became a couple naturally. The story follows small romantic events in their and their close friends' daily lives.