If you think this has a happy ending, you read the title.
From NOIR: A rich, spoiled, successful, handsome man finds himself looking for something new in his life. Taking advice from his past lover, he seeks a roomate, an "easy relationship". However, instead of a glamorous, sexy, cute female... a MALE mistakenly shows up at his door..? (In full color)
From Which Scanlations: Megumi doesn't mind working at her part-time job as a convenience store cashier every day if it means that she gets to see one special customer: her prince. But if she wants him to notice her, she'll first have to summon up the courage to actually talk to him.
Yuki Iwatsuki is a transfer student, today is her first day at her new school. There seems to be some kind of trauma, her classmates “Koneko,” a high-tension girl, and “Akizora Hako,” a bald-headed girl, are very interested in Yuki! Will she get along with everyone?
The story follows Hikari, a girl who has mysteriously lost her sense of happiness. As she grapples with her growing sense of dread, her cheerful classmate Kage offers to help her search for her lost happiness.
Five sexy teachers, and a boy with lots to learn! Susumu Arisaka has just turned 18, and that means he can move out of the orphanage and into his childhood home. He's looking forward to finally living on his own, but five of his high school teachers have gotten there first. They're looking forward to helping him around the house - and teaching him a thing or two about life in the process. It's not at all what Susumu expected, and he's not sure if the situation's awful, or pretty darn great!
Koharu and Minato, a long-distance couple, finally begin their long-awaited cohabitation. Their lovey-dovey daily life, even with their 10-year age difference, can heal anyone from the fatigue of regular life...!
From Mangahelpers: Keitaro Satou is 30, successful at his job...and single. With worries about his future, he decides to have an arranged marriage to satisfy himself and his family, yet while his prospective "wife" is a beauty, problems are bound to pop up!
Part-timer Horikita Akari was living a poor but fulfilling life. Having lost her mother when she was young, Akari was content simply not living under the abuse of her aunt and uncle. One day, however, her house suddenly burns down, leaving Akari homeless...
A short 4-panel comic series about a couple in their twenties.
Yamano Souta is already 18 years of age. And as their government requires people of their age, he participates in a "marriage camp" called Happy Project. Will he ever get a marriage partner if he only has one month--and only one chance--to do it?
High school girl Kaede decided to travel back in time for her beloved benefactor, Minami. Let's see how her determination will change the flow of time. This is a time slip 4-koma manga connected by wishes and wills!