Every day, Asahi goes to school depressed. This changes one day when he meets a girl on the rooftop. But there seems to be more to this mysterious girl than she lets on...
p/s: Yandere girl :v

From Yaoi Toshokan:
Clean freak Mochida meets his match with his classmate in the same major, Mutou. Oblivious to everything, he clings onto Mochida and doesn’t take care of the things Mochida lends him. On top of that, he gives Mochida a porno as a thank-you gift! Like a big dog, he goes all out and doesn’t know how to read the mood, joking all the time. But after a certain incident, he stops touching Mochida. But he’s not lonely! Right!? With a mischievous dog and a clean-freak, where is this road of love taking them?

Izaki always did well in life, no matter it was school or tennis. Nothing was handed to him; all was gained through effort and diligence. Because of his straightforward nature, he tended to clash with others. That was the way he knew and he extended his belief not only to himself but also the people around him. He was satisfied with his modest achievements, that is until he met the true genius, Hakamada...

Hakamada, the quiet prodigy insomuch as things just come easily to him. He doesn't have to work or study hard, and manages to come out on top which is frustrating for Izaki who realizes he'll never reach that level no matter how hard he tries.

At the school reunion after 8 years, Izaki finds himself drinking like old friends with his self proclaimed rival. Before he can even make sense of the strange situation, he found himself in a strange bed...

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Djs:

1.Aisarechattano / アイサレチャッタノ (2004)

2.Ai no Tameni / 愛のために (2005)

The twins who have lost both their mother and father had got their humongous inheritance stolen by their evil stepmother. The three sons of their stepmother have a special relationship towards their non-biological sisters. Thus, a scene of love, love and hate occurred in this old mansion. This is a fairy tale of romance and vengeance.

It started because he was cool.
It's almost two years since we dated. Am I supporting you properly?

1-3, 6) Aishi no Sweet Voice
A young boy who has always hated his girlish voice meets a striking man with a captivating voice. They try to figure out their feelings while striving to realize their dreams in theater.

4-5) An Unopened Door called Honey Moon
Takahara is a rich heir, popular guy that many girls desire, but for Satori, who raised him, Is just big spoiled brat. Could Takahara ever win Satori's heart?

1) Yurusarenai Otoko

2) Aishiatteru Futari

3) Seigi no Mikata no Koi no Yukue (Love & Battle)
Seigo, who grew up in a village, moved to Tokyo to find a job and to fight crime (apparently he has some strange superpowers), since not much happens in his village. One day his childhood friend Touma visits him and challenges him to remind him of his mission. At least that's Touma's claim...

4) Kanoko's Story

Note: Chapters 1-3 are shounen ai stories while chapter 4 is shoujo.

1) Two boys stay at the same dorm and seem to be fighting every day... but do they really dislike each other?

2) A boy refuses his kohai's confession saying he only goes out with experienced people. But somehow he still cannot resist...

3) The new in-game at class is chocolate roulette - including chocolate which has the effect of aphrodisiac and whoever draws it, gets to sleep with the popular boy. Same story, Mix Mix Chocolate chapter 1.

4) A very popular student uses his classmate to evade his a clingly girl by telling her "This is the person I like!"

5) At a school festival, a boy is embarrassed because the guy he shares a secret memory with is hosting the show that puts him up for an auction - whoever bids highest gets to spend the day with him.

6) (Shotacon) A tedious rich boy relieves his boredom by playing with his servant.

7) A student was practicing the piano when all the sudden he gets kissed and blindfolded...

Collection of short stories: - Not Knowing How to Love - Everything was new to me: first love, first kiss, and first sex... I didn't know how to love you... - Childhood Friends - Angel in the 21st Century

A Girl enters a dormitory founded by a researcher where you receive 100 million yen by forming a couple with someone in a year.

1-3) Seventeen year old Ringo Kinoshita falls in love at first sight with student teacher Yashachi Kai but where are the rose colored days of his first love? Unrequited love is bad enough but it seems like Kai-sensei can't stand him at all. With a prank gone wrong and a series of misunderstandings just how will these two come together or will they just be driven further apart?

4) Happy game: A boss and his subordinates peculiar love.

5) Break you: A selfish young master is going to have an arranged marriage, but he's in love with his caretaker.

6) Love is good: Shiba always gets turned town by girls because they prefer his friend Kitaro. But Kitaro's preferences are...?

From Midnight Scans:

Kitou Hijiri, a student, confessed his feelings to a Chemistry teacher named Nakatani Ayano whom he had fallen in love with 8 years ago. Somehow when he was young, he lived beside Ayano and bear feelings for her. Ayano, in turn, could not resist Hijiri’s determination and strong feelings towards her. What will be the ending of their taboo love?

"Aishite Knight" is set in Osaka, and tells the story of Yaeko "Yakko" Mitamura, an 18 year old girl working in her father's Okonomiyaki restaurant. One day Yakko casually meets a little boy, Hashizo, and his odd cat Juliano. Hashizo has lost both parents when still a baby and has been brought up by his elder brother. Hashizo's brother Go Kato is the lead singer of the emerging rock band "Bee Hive". When Yakko meets Go and his friend and "Bee Hive" member Satomi Okawa an unexpected series of events unfolds.

Ever since being cast aside by his ex-lover, Sei Hikawa became a feckless man. He let his hair grow unkempt, without care for his appearance. This aimless way of his is changed by the appearance of a certain man. Wearing a suit and an expensive watch, Kengo Haruki directs Sei and helps him polish both his physical appearance and build his character.
But what Kengo wants as compensation is Sei's body...

From Attractive Fascinante:

Kazushi, an elite, met Harutomo, a cleaner whose dream is to become a chef. Because Harutomo has always been treasuring the change in seasons, after falling in love with him, Kazushi started to treasure the changes too. He found his world started to fill with colors and he finally understood the happiness of “giving”. Let Fujitani sensei take you through the seasons with this very lovely story on how this couple work hard towards their future together and how they manage through their long-distance relationship when Kazushi was posted overseas.

Childhood friends who have been together since they were little. They both realize their feelings for each other, but are too close to be honest. What connects them is the "I love you game" that they have been playing since they were little. The end of their love is decided in this simple game where the winner is the one who makes the other embarrassed!

From Chibi Manga:

Natsumi is an athletic girl who works at at Record Company. Being in the Track & Field during college, she is searching for something that will make her feel alive. Her current job is dull for her and...

From Viz:
Kippei Katakura is a 17-year-old playboy who spends his time chasing girls, careless of their feelings. But when his 5-year-old cousin Yuzuyu comes to live with his family after her mother's sudden disappearance, Kippei is put in charge of taking care of her. As Kippei gets to know Yuzuyu and starts to understand how she feels, he also begins to realize that all girls were like Yuzuyu once.

College student Haneji Kaoru is surprised when popular actor Aragaki Jin appears in his workplace. They were high school friends, but unable to cope with his deepening feelings for the playboy, Haneji cut all ties after graduation. But now that Aragaki has found him, he has no intention of letting Haneji go...

Here we get to follow a story about Sawaragi-san from Takaga Koi daro after his jail time.

Having been sentenced to 5 years in prison for dealing drugs, yakuza Kyousuke Sawaragi just wants to finish his sentence and start a nice normal life far away from his past. So after parole, when he literally runs into former cellmate Shuuya, he's in no hurry to renew their acquaintance. Fate seems to have other ideas though, having the yakuza and Shuuya repeatedly cross paths with him. Can he really turn his back on all of it, especially if it holds out his one chance at finding true love? It's exciting romance as only the famed Saki Aida (S) can write it and Yugi Yamada (Close the Last Door) can draw it!

The story continues in the novel Hanabira Yuki (花片雪).