Wakamatsu Masato lives with his step-sister, Miyuki, whom he does not have blood relationship with. Their father is always working oversea (in fact, he has not appeared in the manga at all...) and left the two of them living by themselves in Toukyou. Miyuki is cute, nice, sensitive and very popular among guys around Masato. Masato has a girlfriend at school whose name is Kajima Miyuki, who is pretty and gentle, the ideal dream of every high school boy. It took years for Masato and his sister to realize whom they love and care most after a lot of events.

This manga was very popular in Japan and was one of the winners of the 1982 Shogakukan Manga Award for shōnen or shōjo manga, along with Adachi's Touch.

High schooler Torii plans to get the girl, even if she is his teacher. The teacher plans to grow up and leave behind her basketball-playing youth. In basketball, planning and strategy can win the game, but is that also true for real life?

From Psycho Pandas:

"I have something I don't want to lose—
So much so that these terrible feelings have grown."

A pianist who attempted suicide 3 times, Juri, is taken to help her aunt at a prison where murderers who killed indiscriminately are sentenced to death. There, she meets a man named Yuu who took the lives of 3 people. A mother's antagonism--a brother's death... Together they embrace the violent rebellion in their hearts caused by the large, deep scars they carry. However, before long, they both embrace an earnest hope in their hearts. "I want to live..."

An adaptation of a novel by South Korea's most popular female novelist, Gong Ji-Young.

From Fallen Syndicate: "My father's last words were a curse, binding me even after his death." Genkyou is a city-state ruled by status and comprised entirely of nobles. Crime and underhanded deals seem to be an everyday occurrence and one in which many turn a blind eye. To fulfill his father's dying words, Iori travels to Genkyou determined to do whatever it takes to extract his father's revenge. However, their may be more to Iori than meets the eye.

Pai is a strange, provincial woman who has come to Tokyo from the Tibetan highlands. Somewhere in Tokyo is a young man who can help her in her quest... to become human!
When Pai finally finds Yakumo, they set off in search of the artifact that can transform her, but it will take all of her mystical powers to keep the reckless Yakumo alive, even if she has to steal his soul to protect him!

Winner of the 1993 Kodansha Manga Award for Shounen.

From 200 wpm:

Miyu, an ordinary new first-year student who hopes to become a mangaka meets the schools’ class president who seems to have a hidden side to him. While being pushed around by the cool but private class president, the curtain on Miyu's stormy school life is raised.

All humans in this world can use the power of the light of mana, and those who can't are considered to be subhuman 'Norma.' The world is like a peaceful utopia, and the celebrated princess Angelize leads a happy life. She believes that the only darkness left in the world is the existence of the horrible Norma. However, in a ceremony on her 16th birthday, the truth is revealed--Princess Angelize is a Norma. Now she is going to learn what her society does to Norma. She is sent to an isolated island full of others like her, who are taught that the only reason they are allowed to live is in order to fight to protect the peace of this world. Now "Ange" is part of a squad that pilots Paramails and fights invading extradimensional dragons.

A new teacher finds himself a newly appointed position as a teacher at an all girls school... on an island... in the sky! How will he make do in his new surroundings? Or the residents of this island who seem like they came from another world? And what's more, how will he fare at being a teacher?

From Bakeneko Scanlations:

Munematsu, the manager of the host club that has recently opened in the shopping street of a small town, meets the timid representative for the neighborhood council - Tooru. At first, Munematsu believes he's just a quiet four eyes, but the drunk Tooru is more seductive than expected and Munematsu starts to feel attracted to him. But the reason why Tooru doesn't let Munematsu touch him is.....!?
The comic romance of the handsome host and the plain recycle shop owner!

From MangaHelpers:

Inudzuka Taromaru is a first year high-school student who looks like a delinquent. One evening, while he's at his part-time job, he ends up with a white-feathered arrow through his head! He's told that this arrow means he has been chosen as the sacrifice for "Inugami-Hime," who lives on top of the nearby mountain. However, this mysterious "Inugami-Hime" turns out to be a cute girl who has chosen him to be her servant, not her sacrifice. Their life together is just beginning! [tethysdust]

1) If It's Not You
For Suwa, a hunk like him needs a pretty girl by his side. Theoretically. But in fact, he's going out with Fujisaki, four-eyed and average looking. It's just a temporary relationship for Suwa, only until he finds a girlfriend... But then, why does he feel so guilty when he takes an interest in someone else?

2) Are You Lovely
When Daisuke finds a love letter in his shoe locker, he's over the moon with joy! The handwriting and the girl's name are so cute, her looks are surely as sweet.... or are they? "Ruka-chan" turns out to be a large, effeminate, kendo-club freshman guy! What will Daisuke do??!

3) Two Glasses
Ryuu has a fetish... a glasses fetish to be exact. In a triangle of seduction, Ryuu has to choose between his cute childhood friend Aya, and his sexy co-worker Kuze-san.

4) Moonlight Stroll
Yuuya is stressed out by Tokyo... the city, the company, the trains. He suddenly gets a call from Haru, his ex - who apparently emailed that he was coming to visit? The days with Haru pass, and Yuuya remembers when they were together... how nice it felt.

5) Even a Dog Wouldn't Take a Bite
Yutaka and Yoshi have been going out... but lately Yoshi keeps breaking appointments because of work. Yutaka gets fed up with it, and decides to let of a little steam with the new guy Narazaki...

Narue is an adorable schoolgirl with a secret. She's really an alien with powers right out of a sci-fi comic! But growing up is never easy, and sometimes it doesn't help when you're from outer space. Join our spunky heroine as she faces androids, alien invasions, and (scariest of all) her very first date!

Note: Won the Seiun Award for Best Comic in 2014.

The sequel of Kirai ja nai Kedo, Koi ja nai Kedo and Kare Ja Nai Kedo as the fourth story of the Yuki-Shinonome series. Finally the both of them became a couple, but another obstacle awaits them...?! Shinonome finally made Yuki-chan his boyfriend, but wait... the storm is not over yet. Who's that person who's taking Shinonome away to the counselling room? Is Yuki-chan.... feeling jealous?! And why is Yuki-chan's brother here?

From Turtle Paradise:

It's not that she tries to keep to herself, exactly: It's just that everyone seems to look right through her! Naturally, Sakuya Tohno has a complex about it. She says she's just like air: ever present, but never seen. All she wants is a friend, but building relationships isn't exactly easy for someone who is, for all intents and purposes, invisible. But then she hears a legend about the "Thousand-Year Sakura" and how, if one makes a wish beneath its perpetually-blossoming boughs, it's sure to come true. So in a moment of desperation, she races to the tree, only to find four very attractive boys waiting for her... And at that moment, beneath the cherry blossoms of the ever-blooming Thousand-Year Sakura, something incredible happens!

From MangaHelpers:

This is the official comic based on the game of the same name. An all-girl's school is preparing to consolidate with another nearby school, which will make them co-ed. Uryuu Shingo is chosen to be a male 'test student' at the girl's school before they officially merge in the following year. On Shingo's first day, he learns that many of the girls are not happy about the coming merger. Specifically, Seno Airi is staunchly opposed and refuses to welcome him to the school. Some of the other girls are friendly, but Airi has a lot of power over public opinion. The truth is, though, that Shingo has met Airi before. When she and Shingo's little sister got lost, he helped them find their way. Airi seemed to like him then, back when she didn't know he was going to be her new male classmate. Maybe he'll be able to win over Airi, as well as all his other interesting female classmates! [tethysdust]

From Cireus-Scanlations:

Tanlou is one of the roaming Blair tribe: a stubborn lot who keep to themselves and frown upon interaction with "outsiders". He, along with six of his friends find a young princess from a nearby castle, wandering in the forest. She begs them to help her, but their help comes with a price. Tanlou is cursed by the head of his clan, and the seven men are banished. Still, they feel compelled to help her. The princess' name? Snow White. After a vicious battle to regain Snow White's kingdom that leaves the princess gravely injured, the evil queen unleashes her wrath, and the unthinkable comes to pass when two of the seven mysteriously disappear, leaving behind five bereft buddies who have no idea what has become of their comrades.

And thus begins the plight of Tanlou and his friends...

Sugiura-kun became an assistant for the manga artist he admired most, only to find out that Sensei is totally nympho. Being attacked in bed immediately after he began working, every day he must deal with the perverted and frustrating Sensei. Despite this, Sugiura-kun sometimes finds himself thinking "Maybe I like Sensei". Also includes a one-shot! A cute, slightly perverted and moving debut comic!

From Yen Press:
The "Roman Club", a school group interested in the occult, to which he's practically enslaved, has become boring for one Hideo Aiba. In fact, he finds his entire existence pretty tiresome until, one day, when a girl named Kurumi Sahana shows up and wants to join up. When the two are left alone in the club classroom, Kurumi makes a special "request" of Hideo, which makes him (understandably) freak out. Though he doesn't know what to think, one thing’s for sure, Hideo’s life just became anything but boring.

A young man finds and returns a lost wallet and cell phone to a beautiful young lady, thus begins the destined relationship between two strangers. Sound typical? Well then, how about making the young lady the young man’s future homeroom teacher, and give them both a twisted sense of right and wrong. And just for kicks, let’s have the young man help himself to a self proclaimed reward from the lost wallet before returning it… but of course, this scenario wouldn’t be complete unless the young lady was very unforgiving when it came to teaching one of her students a lesson on morals. (Source: Infinity Studios)

1-3) Papa, I Love You
The businessman Mayama Kaoru's life changes drastically when his two nephews show up on his doorstep. Keigo (16) and Akio (5) were abandoned by their father and driven out of their apartment. Despite the fact Kaoru has had no contact with their family, he's too kind-hearted to say no and takes them in. Soon the three of them start leading a warm, happy family life. However, Keigo suddenly kisses him one day. Was it a sign of family affection or something more?

4-5) True Love at Prep School!?
Minagawa-sensei suddenly finds a different person in his class; not a transfer student; not a new student, instead, a man who seems like he should already be out of university! Out of curiosity and annoyance, he has a look at this 'new' student. But over a period of time with him, something seems strange... why is he constantly picturing him with flowers...