Based on the Shin Megami Tensei If videogame. The setting is Karukozaka High School, which is mysteriously sucked into a void and emerges in the realm of Makai, a world of demons. Most of its students and school employees are trapped in the other world along with it.
Hida Kizuna possesses the HHG (Heart Hybrid Gear) ability, but it is not strong enough to make him particularly important. His older sister calls him to transfer to a strategic defense school, where many of the students (many of which are large-breasted girls) use their HHG abilities to fight invaders from another world while wearing extremely skimpy pilot outfits. Kizuna's fighting ability doesn't measure up, but his sister has another plan-- apparently having erotic experiences with Kizuna will allow the girls to replenish their energy or power-up. It looks like his new school life is going to be full of embarrassment.
The Indigo League: the ultimate challenge for Pokémon trainers. Structured like a massive tournament, anyone eager to show off their Pokémon can participate, from rookies to gym leaders to even the Elite Four themselves. This is the story of Red, Blue, and Green, three friends who decide to partake in the tournament. Author's Pixiv: https://www.pixiv.net/member.php?id=411252 Author's Twitter: @seijyun09 Author's Booth: https://seijun.booth.pm/
Taku, the boy with a black cat. He uses medicine that cannot be obtained through ordinary means. He is a self-proclaimed Kusuri-ya.
From MangaHelpers: The Katjvarna Empire and the Kioka Republic are at war, and Katjvarna is currently defending their border against Kioka's attacks. Yatorishino is from an influential family in the empire, and she's taking the high ranking officer exams. To make sure she passes at the top, she's convinced lazy, anti-war, girl-crazy Ikuta to take the exams as well and help her, in exchange for a favor from her family. The first, written test goes as planned, and then they head off on a boat for the next. Unfortunately, the boat sinks, and Yatorishino, Ikuta, some other examinees, and a mysterious, important little girl are stranded behind enemy lines! [tethysdust]
The curse of twelve stars, a girl who plays piano with a dream of becoming a chef, because of an odd job that she pretends to be a boy. What's waiting for Yue Hui is a mysterious mansion and 12 boys who have the curse of 12 stars which fall upon each of them. What's awaiting her? Where are her and the boys' destiny leading to? A love song for 1000 years, the legend of 12 beautiful stars, everything is in《Starry Night Club》
Namidare Rekka has a very unusual birthright. After his 16th birthday, he will be drawn into many different stories. Each story has a heroine, and each story depends on him to be the hero. On his first day of high school, a strange uniformed girl that only he can see shows up. She claims to be from the future, and claims that his rescuing of many heroines is going to cause serious trouble for the future. It's not long after this encounter that his troubles begin. His childhood friend Satsuki invites him somewhere, possibly to confess her feelings for him. However, before she can, she's kidnapped! Rekka wants desperately to help her, but he finds himself being tossed into various sci-fi and fantasy worlds, each with their own heroines in trouble. Will he be able to get back to Satsuki? Will he be able to save all the others? How can he really tell the consequences of his well-meaning actions?
Li Chang An, the main protagonist of the show has been sent back into an Ancient World by a booklet with a yellow cover. Here, in this world, with each demon he kills, he would obtain a supernatural power. After he had executed hundreds of thousands of demons, drawn out his sword and looked around him, only then did he just come to the realization that all that he had known, and went through, was just the beginning of a long and drawn – out suffering in this unending hell of demons and death alike.
“Aurora City” is a place that never knows sunlight. Due to limited resources and for the sake of racial purity, every 10 years, all young people in the city should fight in a big tournament. This year, Cill Codon, who has an unusual black hair and eyes is eligible for the dead-or-alive survival battle...
Shen Zhongyi, an ordinary high school student, accidentally discovered that the girl he liked was an alien and also a staff member of the Galaxy Customer Service Department. The department responds to various incidents caused by tourists (aliens living on the earth), and “solve” the problem with the people who now are involved (delete memories, tamper with memories, and even destroy their bodies). In order to avoid being wiped out and losing the memory of getting along with her, Shen Zhongyi started a job career in the customer service department of the Galaxy, which came with a lot of danger.
From Yen Press: A young boy named Roxas whiles away the last days of his summer vacation with his three best friends in their quiet little home of Twilight Town. But all is not as it should be in this hamlet nestled between night and day. Strange things keep happening around Roxas, which always seem to involve mysterious creatures and he is plagued by dreams of a boy named Sora, whom he has never met. Bewildered, Roxas searches for answers. Will they lead him to Sora, Donald and Goofy?
“Shokatsu Koumei”, also known as Zhuge Liang. Among the few heroes that decorated the Annals of the Three Kingdoms, it was once a prestigious name. An account of “an ingenious tactician”, the thousand-year-old story of the “God of Stratagem”. It is said… “in a country torn by factions and transformed into a devastating and cruel hell, the heavens sought peace by sending a composed, well-loved young man of impeccable and divine virtues.” Well, well. In truth… He is a childish man.