On his way home from school, the shy young boy Tecchin finds the body of a young girl lying in the street. He alerts the police, only to come back to find she has been replaced with a life-sized doll. Tecchin takes the doll home and repairs it. She comes to life and tells him that they are both Grand Dolls, alien beings bent on world domination.

In the near future: A world renowned mathematician / physicist Francis Dullam loses his left brain hemisphere and retires from hard science to study dolphins. Several years later he comes up with the new thesis which is essentially a collection of dolphin footage. As the "thesis" is being severely criticized by the media, Ishii Mitsunari (a student living in America) discovers the idea hidden there, that will help to create the true Artificial Intelligence.
Motivated to create the AI first Mitsunari leaves for Okinawa to follow the footsteps of Dullam.

Thanks to a bad mother obsessed with men, Rin lost a warm house when she was young. The one who supported her at that time was the family of her childhood friend, Momoka.

...but, at some point Momoka began dating men, one after another, as she indulged in the feeling of love. Almost exactly like the mother that had left Rin behind.
"I won't be satisfied if I'm not loved" Momoka boasts. After she's admonished by Rin, she suggests "Then, you do it Rin. Love me, in place of a boyfriend".
And thus, from kisses and lies, begins a girls' love story.

A guy and his 2 yandere love interests ...

This spin-off of the “86 – Eighty-six” series takes place in the world where none of the tragic events occurred and the war never happened. Shin, Lena and other characters are enjoying their normal high school life akin to the one in Japan.

Michiru is a happy child who loves to skate. During her childhood, she meets Leon, a cute innocent boy. They begin to ice dance together. But as she has a conflict with her mom, she plans to run away with Leon. Leon, considering the danger, declines Michiru. Hurt by this, Michiru runs away by herself. Finding out that Michiru has run away, Leon and others search for her, finding her in the skating rink. But the Michiru they find standing in the rink no longer has the smile that the old Michiru had!?

Shigeharu Honda is a Japanese League batter on the rise. His son Goro is a Little League pitcher who one day hopes to follow in his father's footsteps. Momoko Hoshino, Goro's schoolteacher, is the first woman Shigeharu has been interested in since the death of Goro's mother. The destinies of these three individuals will become intertwined as father and son experience both heartbreak and triumph on the baseball diamond. But when an unspeakable tragedy visits the family, it will take everything they have to pick up the pieces and reclaim their dreams.

Note: Won the 41st Shogakukan Manga Award in the Shounen category in 1996.

Spin-off volume Noragami Shuuishuu- featuring one man’s unlucky venture into love (a familiar face for those who’ve watched episode 4 of the anime)!

What happens when a tired old couple is given a second chance to escape their married life and start over? Through a twist of fate and a magical coin, Chastity and Valor are thrust back to their teenage years- to an age before they were wed. Will they take this opportunity to part ways for good or rekindle a love they never had?

After Yuuko graduated from junior college, she ended up managing a clothing shop. Though her career is going well, she hasn't had time to work on her love life. One day, she's out drinking with her best friend, Mikan, bemoaning her lack of a boyfriend for a Christmas date. When she trips and hurts her leg, Mikan asks her little brother Leo (an 18-year-old) to see Yuuko home safely. When they arrive at her apartment, though, Yuuko makes a move on him and they end up sleeping together.

The next morning, she realizes that she not only slept with her best friend's little brother, she actually took his virginity! Leo isn't satisfied with it being a one-night stand, and they start having a completely sexual relationship. Will she be able to keep this from Mikan, and is it possible their relationship may grow to something more?

A muscular youth who grew up in a rural environment has finally found his springtime high school life, and it turns out his romantic partner is the most popular girl of first year?! But, the truth isn't as straightforward as the muscular youth believes it as...

A gaming otaku and a fujoshi reunite for the first time since middle school at work.

‘Vampire’, ‘zombie’, and ‘human’
If it were you, which one would you choose?

It all started from making a selection in a social game. But what if the selection that you casually chose in the game became reality?

The third year university student Shin Momotari dreams of creating the greatest movie, and one day he has a chance encounter with Hitomi Oosako, a girl beautiful enough to be mistaken as an actress. And, it just so happens that she is an entering student at the university Shin attends. Guided by fate, the two of them gradually begin to fall for the other. However, there is something that neither of them know. The partner that they've fallen in love with is related to them by blood, their sibling. And so opens the curtain on a pure and forbidden love story, woven by the two who must never be together.

Hiroshiman boy Onijiro Otogi, and Russian girl Paulina are a newly-wed couple in their third year of high school. Together, they will learn about proper physical relations as they raid their high school life!

Crash is about a girl named Hana who has a very unusual gift. Her home is a talent agency and she helps her mother using her "gift". She literally has nosebleeds when she sees someone with celebrity potential. Naturally, this is a secret she keeps from her classmates. On the company's anniversary, Hana is sent to find a new awesome talent. And that's when the story unfolds...

Also included is a short story called Piyokko 24 in vol. 5.

The original series ended at vol. 7 and took a four month hiatus before resuming with a second part featuring Yui, Kazuhiko's childhood friend, as the main character.

The story focuses on a fake romantic relationship between a company CEO and his top performing female subordinate. She's been betrothed by her father to the son of a prominent family, a family with both political and business power and this match may bring her current corporation - where her much respected superior leads the way - to ruin.

Xiao He, a handsome medical student offline, and both a powerful and popular player online, beats the most wanted criminal on the server- the notorious female bandit, [Tao Zhi Yao Yao]. Unexpectedly, this much disdained bandit turns out to be the former first female e-sports player, [Wei Sheng Xin Yue]! Why did she change her name? And why did she become a bandit? Offline, the two mistakenly walk past each other as strangers time and time again. What will they be like when they finally meet again on the e-sport stage?

1000s of years of history lies dormant in the hidden world of martial arts. Yet the struggles have never ceased and the masters emerge and fight on, now with a high school as its battleground.

A heart-warming story of how a neglected orphan, Yuu, has been blessed with the offering of a free wish by a demon, and he simply asks her to become his older sister.