From Condensation:
Toujou Souko attends a Catholic high school for girls and spends most of her days ditching class and trying to hook up with guys. She's in a hurry to fall in love and often gets into trouble. Ueda-sensei is Souko's homeroom teacher and all the girls idolize him on campus. He thinks Souko's a good kid and is looking out for her best interests... Yet he never meant to encourage her to try and seduce him...
What begins as a passionate affair becomes a true and undying love... Ai Girl is an angsty love story loaded with melodrama. It should be noted that this series has adult themes and high smut content.

from Blissful Sin:

“I want to satisfy my heart and body…!”

What does it mean to become a pair of lovers? Confessing love, having sex, does that alone make you lovers? When did the feeling of falling in love become a greedy luxury?

A special publication, “Rising Feelings” and more, in this large compilation full of hard romantic love stories!
***********

This volume also features two couples that first appeared in her other work Anbalance Lover.

Arisaka x Shirafuji from ch8 here and ch1 in AL.
Eiji x Yuusuke from ch2 here and ch7 in AL.

Chapter 5's Yano x Inoue are a sequel to Chapter 1 in Body Check

Iriya Tetsuo was the nice, quiet kid that everybody knows. Until well-meant prodding on the part of Hanada Satoshi made him choose the 'easy' way out. He purposely failed the entrance exam to a good school, and picked fights so that he wouldn't have to be around Hanada anymore.

The last thing he expected or wanted was for strong-willed Kizu Ryouji to show any interest in him. The sparks fly between the two, while Iriya's best friend Kasuga Ryouta watches jealously...

Hana and her Husband, Ryuuki, are keeping a secret. You see, Ryuuki is living a double life. On one side he is a teacher at an all girls school; messy hair, thick glasses, and all. Then on the other hand he is a famous male model that make girls shriek at just one look at him. Can Hana and Ryuuki keep their secret while still keeping their love alive?

Volume 1
ch 1-3 After Five is Rain of Kiss, What To Do With Love and The Validity of a Kiss!
Enomoto is always reprimanded by his chief Tsuda. But when he stays late to finish work, Tsuda will sexually harass him.
ch 4 Meeting in the President's Office
Two office workers and one has a secret and a fear.
ch 5 Even If It's For One Moment
ch 6 Business Trip's Promise

Volume 2 ch 6 Christmas ni Naru Made Matte
A story about one of Santa Claus' sons and a reindeer.

Volume 5 ch 5 Muko x Muko!?
Misao and Eichi are the school's most popular idols. However, every morning they arrive at the same time and show their dislike for each other.

Volume 6 ch 5 Spring Love (Haru yo Koi)
Who can it be...? A chance meeting between Koharu and a mysterious window wiper, leads to his decision to abandon his post as the President of Ameya Product, just to be close to this man. But, will only this be enough for Koharu?

From Chibi Manga & Shoujo Crusade:

1-3) Air Koi
Nina has one sided feelings for Hayashino Senpai. Nina is unable to see Senpai until she clears the game that Senpai provided…That is…to find and take the exact pictures that were e-mailed to her. But Taro from the same class was assisting her And realized how odd this game is and…?!
A Painful dramatic love story!

4) Lost in a First Love

5) Love Materializes

From Divine Sanctuary & Midnight Scans:
The Senpai that I liked so much had a girl he loved. No matter how hard I tried, I was second place in his heart. That’s when I started to go out with my classmate, Haru, who was also having one-sided feelings. We started going out to empathize and sympathize each other’s feelings but slowly, change was starting to take place in our relationship too.

A small coincidence makes history!
The story of the earthlings and superhero Aimer's efforts to block an alien pumpkin gang invading earth is about to unfold!

From Fushichou:

Hikari is a quiet, shy boy who secretly admires his senpai, Kizaki. Or, are Hikari's feelings deeper than he has admitted to himself? It also appears that Hikari has caught the eye of one of his teachers. What will become of Hikari?

SideStory in v02 is not scanlated

Divided into four chapters entitled respectively 1970, 1974, 1976 and 1980, the story focuses on a young couple, Keiko and Kosuke.
They meet during high school and soon become friends. Koisuke aspires to become a famous movie director and Keiko helps him with his project in a competition. The outcome is brilliant but not much later Keiko sees him kissing another girl. During the next years they will meet again, but will they be able to overcome their misunderstandings?

1) Give me your love
A coach's attempts to get a reaction from his expressionless student becomes sexual harassment.

2) I want to become love
Sequel to one.

3) Lets hold hands
Attracted to his stepbrother, kid leaves home and becomes an AV camera man, only to get mixed up in a police investigation with detective stepbrother.

4) Atonement
Gymnast feels guilty over his former friend's childhood trauma. Especially since the guy seems to be following him.

5) Switch
Helping his twin brother end an affair with a student gets a teacher tied up with a bomb on his chest.

6) The moon shine secretly
Hayami craves human blood, and Abe faints at the sight of it. So why are these two work rivals spending so much time together?

Senoo Kaoru falls in love with an attractive freshman he meets at the library, Shinohara Akira.

Shinohara Souya is unable to let go of the memory of his beloved.

And Akira is a lonely boy starving for love.

No matter how strongly they wish for it, these feelings wrenching their hearts can never be requited.

A secret past binds them together; and the shocking truth will be revealed in the end.

What fate awaits these beasts hungry for love, in this tragic story by Hakutou Noriko?

Crushing Love (1-3)
Keiichi Kuroda is a wealthy but selfish man who lent his ex-boyfriend a large sum of money and is expecting payback. Kaoru Otowa needs 5 million yen by the end of the day! Teaming up seems to be in their best interest, and they set off to Kyoto to settle their debts, take their revenge, and realize their love! What kind of battle plan have these two money-driven lovebirds come up with?!

Love Life (4)

Purity and Tyranny of Love (5)

Love of a Tyrant King (6)

My Throbbing Heart (7)

Love Love Me + Afterthoughts

From here:
A cute story about Honoka and the guys she has to live with (a pair of twins in kindergarten, a junior high student, a high school student, a college student) as well as the other guys she meets in school. Honoka is generally a sweet, naive girl which draws an assortment of guys who instinctively want to protect her and maybe become her boyfriend... ^^;

From Manga Abyss:

1) Akaneiro Showtime
Akane Nonomura is a 1st year student in high school with a loud voice, body, and dreams. One day, Akane cried while reading a line from a script she accidentally received with an invitation from Kazuma to join the drama club. Now, she takes the stage as the lead in the play...!

2) Dengeki! Otome-ism
Amagi Shuri is the strongest girl in class because her father runs a dojo. She can't control this strength and someday found herself in a RPG-game with her classmate, the cold Nishina Kei...!

3) Ten wo Tsunaide

4) ACT!
A different version from the first story "Akaneiro Showtime"

From Aerandria Scans:

Karashima is a high school boy with a beautiful voice. So beautiful that he can make anyone do anything, just by saying the words. Because of his potentially dangerous ability, he distances himself away from people but soon finds himself in the middle of various criminal investigations that he can help solve, and a girl named Kokubu who seems to be in love with him.

Ari is a brand new first-year high school student. Shortly before school starts, she sees a band holding a mini outdoor concert. She is struck by how great the music is. That band, Sunnyside, is currently the hottest indie group. AND, the really cute lead singer, Youta-kun, is a student at Ari’s new school! Even better, he is in her grade, and they will be in the same class! However, Youta-kun is really popular with the girls, and he happily lets them hang all over him, like he's dating them all! Youta-kun becomes really interested in Ari’s piano playing and makes an instant decision - Ari must be Sunnyside’s new keyboardist!

Takeru’s mother is about to remarry. That is a great opportunity for Takeru to live with a real family and, most of all, to have a big brother, Shin. Things do not actually turn out the way he expected, though. One day, while waiting for his girlfriend, Takeru hears a couple of people discussing about money for sexual favours. Curious, he turns around to check out the chick, but it turns that both parties are male. However, what shocks Takeru more is when he realizes that the one prostituting himself is Shin, his new stepbrother… First volume extra : Shounen S. There's also a book of various doujinshi called Renai Junkie. The fifth story is a spinoff of Aitsu to Ore called Newly-Wed

From Kirei Cake:

Aisupe @ is a love comedy story based on the online game “ai sp@ce” that features various well-known heroines from popular games and shows such as D.C. II, CLANNAD, and SHUFFLE!