YJ Ban Lemon Angel(1990)

Kagami Junichirou was known as a physics genius when he was a teenager, and he was even published in "Nature." However, after college, he suddenly lost all interest in science. As a NEET, he's devoted himself to his anime blog and nerdy collecting habits. He claims he has a serious illness called "I can't do anything I don't want to do." Desperate to get him to do something with his life, his little sister manages to get him a job teaching physics at his old high school. He's certainly an unconventional teacher, but he becomes fairly popular with the students. After helping a girl who's being ruthlessly bullied, Kagami finds that he actually likes teaching. Will he continue his career as a weird teacher? Will he go back into physics? Or will he end up back where he started?

Wealthy heiress Catarina Claes is hit in the head with a rock and recovers the memories of her past life. It turns out the world she lives in is the world of the game Fortune Lover, an otome game she was obsessed with in her past life... but she's been cast as the villain character who tries to foil the protagonist's romances!

Raised from birth as a man, the Lady Oscar commands the palace guards at Versailles in the years before the French Revolution. Her beauty and noble spirit make her a shining figure in the eyes of both men and women but she is torn between her chosen life of service and duty to class and country and her own heart and desires. She lives as a noble amidst the opulence of Versailles but her keen senses and compassion are not blinded to the poverty of the French people.

Ashito Aoi is a young, aspiring soccer player from a backwater town in Japan. His hopes of getting into a high school with a good soccer club are dashed when he causes an incident during a critical match for his team, which results in their loss and elimination from the tournament. Nevertheless, he catches the eye of someone important who happened to be visiting from Tokyo. How will things turn out for Ashito?

The students of Class 3-E have a mission: kill their teacher before graduation. He has already destroyed the moon, and has promised to destroy the Earth if he can not be killed within a year. But how can this class of misfits kill a tentacled monster, capable of reaching Mach 20 speed, who may be the best teacher any of them have ever had?

Ayato transfers into a new school hoping for a fresh start. Sadly for him, the school turns up to be filled with delinquents, and the most feared of them all has his eye set on him. And it doesn't help, that whenever Ayato accidentally takes off his glasses, everyone around him suddenly becomes completely smitten by him.

A young man discovers a tiny hole in a wall of his new room, and looks through it to see a girl on the other side.

For 30 years, thousands have traveled to other worlds. The few that return keep the powers they had in those worlds. Akatsuki Ousawa returns from the world of Alayzard with the defeated Demon King's daughter, Miu. Miu pretends to be Akatsuki's sister to hide her true identity. They join Babel, a school for inter-dimensional travelers, and struggle against the student council to uncover the truth behind the school.

Kyotaro Ichikawa, a boy barely clinging to the bottom rung of his school's social ladder, secretly believes he’s the tortured lead in some psychological thriller. He spends his days dreaming up ways to disrupt his classmates' peaceful lives and pining after Anna Yamada, the class idol. But Kyotaro's not nearly the troubled teen he pretends to be…and it turns out Anna's a bit odd herself!

Taiki Inomata loves badminton, but he has a long way to go before he can reach nationals. When Taiki sees upperclassman Chinatsu Kano practicing her heart out on the girls’ basketball team, he falls for her hard. After an unexpected turn of events brings the two closer together, sports might not be the first thing on their minds anymore!

Serafina, the West’s fiercest knight, expected torture when captured by barbarians. Instead, she got a marriage proposal! Marrying her sworn enemy is a hard no! But after seeing her wedding captor’s culture and very pretty face, she may be tempted to swap her sword for a wedding veil. Get ready for the ultimate enemies-to-maybe-lovers arc.

A boy and his mum find themselves suddenly transported somewhere across the universe surrounded by an amazing array of aliens from new and unknown corners of the galaxy. While trying to work out who brought them there and why, they make a new home for themselves and encounter new friends, including Mo, the only other being from Earth – a dinosaur.

Tsukushi Makino, a girl who comes from a poor family, just wants to get through her two last years at Eitoku Academy quietly. But once she makes herself known by standing up for her friend to the F4, the four most popular, powerful, and rich boys at the school, she gets the red card: F4's way of a "Declaration of War." But when she doesn't let herself be beaten by them and is starting to fall for one of the F4, Rui Hanazawa, she starts to see that there is more than meets the eye...

"This is my punishment - someone as hideous as me falling for someone as good-looking as you..." Yumeko had a mountain of complexes about herself. Then, a terrible accident befalls her. Though somehow saved from the brink of death, Yumeko wakes up a completely different person. "Is this...me...?! I'm SUPER cute!!" Those around her can't hide their surprise and wonderment at this 180-degree change... But, Yumeko's new hyper-positive attitude starts to change her surroundings, too. Worries and complexes can affect anyone, and Yumeko will chop right through those of her various supporting characters!! In love, work, friendship... And an attempted murder case?!

Saku Chitose is a student at Fujishi High School, the most prestigious school in Fukui Prefecture. Outstanding in class, on the field, and in his social life, Saku attracts attention, good and bad. Naturally, he is surrounded by a circle of friends anyone would be happy to have. Now in the spring of his second year, with a new class, Saku is asked to help a shut-in classmate return to school life.

Ryota Sato gets the surprise of his life when he's suddenly transported into another world and nearly clobbered at the hands of the young, pretty adventurer Emily Brown. This new world revolves around defeating monsters and profiting on whatever they drop—food, money, items, etc. Unfortunately for Ryota, he has no skills to speak of...until he learns he has the ability to get rare drops! Suddenly his luck turns around...or does it?

Nagasumi's in hot water after a beautiful, young mermaid named Sun saves him from drowning. The deep-sea sweetheart's dad is a merman yakuza prone to executing anyone who learns his family's scaly secret! Luckily, there's a catch - if Nagasumi agrees to marry Sun, he just might avoid sleeping with the fishes!

To protect her hometown from the Erebonian Empire and to distinguish herself from her grandfather’s disloyalty, Lavie enlists in the Northern Jaegers where she’ll do whatever it takes to carry out the mission. Now this rule breaker must form a platoon to embark on a dangerous recon mission into enemy lines—will her mission be a success?

The Meiji Era was one of great renewal for Japan, where swords and killing were outlawed. However, many survivors from the time of Revolution still live, lurking in the shadows and waiting for a chance to use their killing blades again. Only Kenshin Himura, formerly one of the most brutal of killers, hopes to keep his swordsman's honor and still live in the new era.