From Viz:

Risa Koizumi is the tallest girl in class, and the last thing she wants is the humiliation of standing next to Atsushi Otani, the shortest guy. Fate and the whole school have other ideas, and the two find themselves cast as the unwilling stars of a bizarre romantic comedy duo.

Lovely Complex Plus is actually volume 17 with the final chapter called Love Com Final. The first two chapters are about before Koizumi Risa and Otani Atsushi met each other. The third chapter is about their first encounter and a little bit of what happens to them after the ending of Lovely Complex.

*Contains a side story called Hoshi ni Natte mo Aishiteru (Even When I Become A Star, I'll Still Love You) in vol 12:
Reina wakes up surprisingly in her boyfriend's room. But it seems that she passed away three days ago...

In 2004 Lovely Complex received the 49th Shogakukan Manga Award for shōjo.

A girl realizes that real-life isn't always like the love story manhwa she's read...

Continuation of Milk Crown, Milk Crown H, a romantic comedy with a cute plot, is by Mizuto Aqua (the accuracy of translation is unknown). It is the story of Tachibana Oto, a ditzy girl who works at the Class Z dormitory as a maid to earn her school tuition. On her way to the dorm, she bumps into a gang of fighting people. When she interferes to break up the fighting, she was pushed around. A mysterious stranger, with GOD tattooed on his arm and a partly died fringe, timely comes to her rescue. He turns out to be Goryukanda Jin, dormitory head of Class Z, the people considered elite to others because of the various talents they hold. Though not in full recognition, Oto instantly falls in love with Jin for his daring ways and the un-human like traits he holds. She soon meets the other residents of Class Z, some who seem ordinary, some who seem strange, and some who seems extraordinary. The manga goes on with her life at Class Z, as she gradually discovers each of the resident’s talents and goes through, inevitable in the manga world, obstacles and seemly wrong decisions.

Contains two stories:

I. Migiko Nipponichi!! -
As children Sakon confessed his love for Migiko and promised to protect her, but not long after suddenly cut all ties with her. Now, many years later, Migiko is determined to make Sakon take notice of her by becoming Japan's Number 1 idol. - From Solaris-SVU.

II. Takuya of the 7 Wonders.-
There's a rumor in the school that if a person steps into the school at night, they will disappear. Sanami, a middle school student who is oblivious about the rumours, decides to prove those rumors out. She gets her best friend missing and now must save her before she disappears.

From Shoujo Crusade:

In exchange for being the only one who knows his secret, Yuna is tasked to hang out with the quirky student council president... who has a habit of separating from his body and following Yuna around as his soul?!

Kohamaru comes from a peculiar family - each member can switch bodies with his or her soul mate! His parents can switch bodies, and his aunt, oddly enough, can switch with her cat! Now it's Kohamaru's turn...

When Kohamaru literally runs into Nanao, the girl of his dreams, they switch bodies. True love, right? Well, unfortunately, she's in love with someone else. And if that weren't bad enough, the "someone else" turns out to be Kohamaru's twin brother Konatsu... who can reverse their transformation with his own kiss!

Shiino Tazumura is a bit of an odd girl. One day in a park, beside what is rumoured to be a haunted house, she discovers a beautiful dog injured behind the bushes whose wounds she tends to. The next day, a beautiful boy resembling the dog shows up on her doorstep...

Mekakushi no Kuni is the story of high school student Outsuka Kanade who can sometimes see a person's future with a touch, and transfer student Naitou Arou, whose ESP is limited to past events. When Kanade glimpses an unfortunate incident coming, can she change it? She soon befriends Arou, who's no novice. While Kanade’s power is limited to the near future and is somewhat incontrollable, Arou’s is permanent and he can even use it to see an object’s “memories”. Are these teenaged seers of the past and future made for each other? And who's right: Arou with his "hands off" policy about meddling in people's lives, or Kanade whose more proactive stance has already had unhappy consequences?

It's the start of high school, and Kako decides to "produce" her bookworm of a childhood friend, Kousei, so that he can become a good-looking and popular school idol. She models him after Lawrence, a character in a manga she likes, but as Kousei's transformation becomes a huge success and he extends his new character beyond what she asks for, what will Kako do? Will she find herself left behind in the wake of his newly found popularity?

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Also included is a story called Megane Danshi Shinka Setsu (Theory of Evolution for guys with Glasses) in volume four.

A collection of short stories of girls who luv their megane boys~! 1) Bousou?Otome by IKEYAMADA Go High school girl Chihiro is, in fact, a shoujo manga author! She bases her manga on her wild ideas with her first boyfriend, Izumi-kun, but she's keeping it a secret from him...? (Also included in Get Love!! vol 6) 2) Gyutto Shite Chuu by CHIBA Kozue (Also included in Gyutto Shite Chuu) 3) Kimi wo Choudai by KURUMATANI Haruko Himeko-sama who hates to lose actually loves Ren whom she sees as a rival. The Himeko-san in Ren's eyes is...? 4) Kyuukyoku Kareshi ni Yamitsuki Kanojou by SHIRAISHI Yuki Chisako has a boyfriend that's the head of the public morals committee but she has a secret that he must not find out! (Also included in Ojousama no Himitsu) 5) Seitokaishitsu de Himitsu no XX by MAMURA Mio Mayu, who admired the student council president Kanzaki, enters the student council. But as she gets closer to him she finds out for the first time his cold, real face. 6) Megane Jikenbo by NAODA Tsuboko Chiri is always competing with her childhood friend who is the top of the school. Ever since the one time that her result changes, she can't stop her mouth from saying that...? 7) Megane Danshi wo Hitorijime? by HATTORI Miki When Sakurai came early to class one day, she starts talking to guy who wears glasses in her class who also came in early. Bored by his responses, she decides to steal his glasses revealing this four-eyes is actually quite a bishie! 8) Kimi no Heart ni Koi no Ya wo by OTANI Hanayo Akane loves her senpai of the archery club. She happens to confess in full vigor, but the answer is NO!

Marichen finds herself in a different world when she wakes up. The only way to get back home seems to be finding three elements and bring them somehow back to her dream. The three elements are: Peace, Compassion, and Eternity. Her adventure to seek them out begins, or not.

Note:
The plot is very much incomplete, but the author made a note in the end of the book, stating that she is fully aware of it and that she had to end the series due to some issues. She claims that she plans to restart it one day again, but apparently, the author discontinued this series in order to start a new one, Shining. (JanimeS)

In a world where demons and humans are at war, there exists a Demon King, whose voice holds a power that destroys all in its way. When an unusual Hero attacks his castle, what's a Demon King to do other than confess his love? But thanks to meddling minions and the inconvenience of a voice that destroys everything in its path, his confession may not go according to plan...

Abe Maria, an ordinary high-school boy and Nanami Tokuko's childhood friend, is the world's last pureblood vampire!! For 10 years, Tokuko has been encouraging him to become a part of human society, and since then, Maria has come to love humans. As such, Tokuko happily watches over Maria. This couple's story is the world's most gentle vampire comedy.

*Includes an extra story called Manshinsoui no Futari (The Wounds that Cover Us) in vol. 1 detailing a high-school romance between a boy who is suffering mentally and an extremely clumsy girl.

From Del Rey:
Junior high schooler Nina is ready to fall in love. She's looking for a boy who's cute and sweet and strong enough to support her when the chips are down. But what happens when Nina's dream comes true…twice? One day, two cute boys literally fall from the sky: they're both wizards and they've come to the Human World to take the Magic Exam. Their success on this test depends on protecting Nina from evil, so now Nina has a pair of cute magical boys chasing her everywhere she goes! One of these wizards just might be the boy of her dreams…but which one?

From Aku-Tenshi :

Because her father was sent to London to work, Natsumi, a 4th grade student, also must leave Japan along with him. Her classmates throw a farewell party for her. Natsumi is prepared to go to London, but on the night before Natsumi's arranged departure, a baby suddenly appears in her house after a roar of thunder! What's more is that this little baby is actually the one that Natsumi will give birth to in fifteen years!

It's about a girl, Taobei, who has somebody writing on her book that she's a pig. This really angers her. Then, there's Muyu, the guy who's been friends with her since childhood... and he's angry with her. A really funny story of a silly and dense girl.

From Tokyopop:
Yayoi, a spunky high school girl, has inherited spiritual powers from her mother, and she uses these powers to protect people. During a fight with the devil Ura, Yayoi's power turns the devil into a black kitten. Now, even though Ura doesn't hide his desire to "eat" Yayoi's power when he gets the chance, they develop an interesting relationship: the two begin living together, and Yayoi takes her new feline "friend" on her adventures.

From Aerandria Scans:

The kingdom of Gulba is racked by rebellion against its young prince. A special guard has been formed to protect the realm against the rebels. They are led by Captain Carla, the Beast Tamer. And her "beast" is tall handsome Hazel, her aide and bodyguard--and the only one she trusts. Vowing to avenge her father's death at rebel hands, Carla rescues Hazel from a circus to raise and train herself. The rebels have stepped up their attacks, there's a traitor in the guard ranks, and now Hazel is acting strangely. Can she really trust him after all...?

Akira Nikaido is a typical slacker high school student who thinks he has a normal life--until a mysterious man called Shirogane appears and tells him to meet him at the school that night. He is skeptical but goes anyway... and gets attacked by a shadow monster! Shirogane convinces him that the balance between the human world and the shadow world has been distorted, and that Akira must become a shin--a creature of the shadow world--in order to help restore the balance.

From Nagareboshi Manga:

Chieri (Cherry) was living an ordinary life, until her sister Ichigo (Strawberry) suddenly left her child Momo (Peach) on Chieri's doorstep. Momo is an infant; how is Chieri supposed to take care of a baby while still in high school?! To make matters even more frustrating, two guys are fighting for Chieri's love...?!