Shiro and Kuroh are not the only ones who go to high school. Instead, the members of Homra (including their leader Suoh) and the members of Scepter 4 attend school together. The students are sometimes lax, but at other times, they are hot-headed.

From Fantasyshrine:

V.01 - Single Mind
S&D Securities -- the 4th Guard gathers suave and intelligent professionals who are highly trained in combat. However, a reckless youth appears and is hell-bent on sticking to the intelligence manager, Taki Keiichi. Due to a previous assignment, Taki caught the attention of the yakuza and is now being pursued by this persistent rookie to join.

"I'm not going away until you either come with me or kill me!"

Amused by his earnest request, Taki offers for Yuuki to stay with him under the guise of his personal bodyguard. But Taki starts to develop a desire to oppress the ever obedient Yuuki...

V.02 - Second Wind
Kogami Shinobu is the number-one cool beauty of the Intelligence Department in the S&D Securities- the Fourth Guard, where suave and intelligent specialists gather in abundance. However, he doesn't seem to care for his partner, the laidback bodyguard Miharu "Shin" Shinnosuke’s pursuit. Why is it that Kogami stubbornly refuses to mix business with pleasure, as if he's scared of it? Then suddenly, Shin seems to have shifted his attention to the new charge he’s supposed to be protecting! What in the world will happen to their partnership--!?

V.03 - Third Party

V.04 - Four Card(s)

V.05 - Five Minutes

V.06 - Zero Hour

V.07 - Sixth Sigma

V.08 - Seventh Heaven

V.09 - Eight Knot(s)

V.10 - Nine Lives

V.11 - Ten Gong

Welcome to the Lunar Eclipse Circus!

Wan Jia was betrayed by one of his own teammates in the virtual reality game, "King of Gamers" (KOG) and lost his qualification. However, In his final moments before being removed from the game, he was transported back one year earlier to the day that "King of Gamers" launched. Already a master of the game and possessing in-depth knowledge of the content of the game, Wan Jia orchestrates his return to the "King of Gamers" to not only to punish the traitorous teammate, but also achieve victory!

A collection of short stories from Kaneko Atsushi

Kagami Kouma loved to collect different kinds of objects and collections ever since he was a kid. One day, he was transported to another world by a girl who claims to be the daughter of the demon lord Lucifer! She needs his talent of collecting things to help her collect the 72 treasures in order to become as powerful as her father. What danger will Kouma face in his journey?

A side story from the popular Granblue Fantasy adventure series. Pommern, a soldier in the Imperial Erste Army, is thrown from a ship, and, guided by a mysterious voice, finds an ancient book on an unnamed island. From there, the story delves deep into his past...

From Storm in Heaven:
The first mouse appeared on the night of a full moon over two thousand years ago. A timeless children's song among the humans tells how it made powerful mice companions and legions of war mice. Then it declared war on all humankind. Pai'yan is on of the king's honored 7 heroes, renowned for his skill in fighting the mice. He comes home after a long campaign to find his young son kidnapped by the Magic Mouse, and his son's pet kitten Toraji transformed into a half-human cat mix. Now Pai'yan travels with Toraji, searching for any word that could lead them to the Magic Mouse and his missing son.

Year 2055, 4 years after the events in Danball Senki W. LBXs have become the world's largest hobby, big enough for pro leagues to be established, and people to make their entire living off being an LBX player. 14-year-old Arata is a new transfer student at Kamui Daimon Integrated Academy on Kamui Island, near Japan. Known to be the most prestigious institution in the world for raising LBX players and mechanics, entrance to the academy requires an extremely competitive hurdle of being the champion of at least 3 official tournaments. Along with other members of his platoon, they face rivals and delve into the secrets lurking within the academy.

The past life died because of the imperial concubine, and he was born again in the high school era. It coincides with the recovery of the aura and the great changes in the world. When rejuvenating a teenager, he will follow the path of his journey, and he will protect his own friends. Loved ones. When he does not choose to stay, he will push him all the way.

From MangaHelpers:
In the near future, aliens from Bluto “invade” the Earth. But what is their objective? To steal all of the timed sale groceries at rush hour and make perverted havoc among the citizens. Not the kind of aliens you would find every day. To counteract this “terrifying” enemy, a special force of heroes, “The First Star Heroes,” has been sent out wearing dynamic colors. But, out of the five heroes, two of them have a secret. Momose Kaname, a 14 year old boy who has idolized these heroes, is transformed into the team’s Pink Hero and now has to hide his identity. And “he” finds out that the Red Hero of the team is actually a girl who has experienced the same gender-bending transformation as Kaname. What will happen to these Heroes, especially Kaname, as they face all kinds of odds during their “heroic” days?

Tachimori Ashita inherited the Tachimori Mansion when his parents died in an accident. Originally owned by his great grandfather, the estate has been traditionally an inn that had many people living in it but, as of lately, it has become vacant due to Ashita losing his parents. As Ashita tries to revive the mansion in remembrance of his parents, he is surprised by a young girl looking vampire named Noi and her servant Sesera who claims to own the place.

According to Noi, she lent the mansion to Ashita’s great grandfather in return for maintaining the building until Noi returns. As a vampire, Noi has super strength, the ability to turn into mist and can cast various spells. She has a powerful dark aura that attracts evil spirits and, because of that, Noi has had to constantly be on the move. But because of that, she has been abandoned by her family and friends. Ashita decides to let Noi and Sesera stay and is determined to start a new chapter in the Tachimori Mansion history.

Keel, the hero of our story, is looking desperately for Siva the so called "best monster fighter" to retrieve something precious that he took away from him, on his search he joins a beginner monster fighter girl, along with her flying pig monster and goes for an adventure to find Siva who for some reason has been missing for two years.

When Hotaru moves into a new apartment alone, there’s a mysterious man standing nearby the apartment. Hotaru decides to confront the man, who turns out to live in the neighbouring apartment. The next day at school, Hotaru’s best friend Kanae tells Hotaru that a host tricked her out of her money. When Hotaru goes to confront the host, he happens to be none other than Hotaru’s neighbour, Masamune?!

Note: Most of the plot framework, as well as the protagonist, was changed for the main story compared to the original oneshot. The setting remains the same.

From Decadent Descent Scans:

Since he was young, Chiwa has been dreaming of returning to the Underground. He finally succeeded by joining the Special Forces unit of the police.

"Great Raven" is made up of mostly Enhanced Humans who have unique abilities. Their mission is to track down members of the crime syndicate, Joker, and stop it from kidnapping and altering children's bodies. But Chiwa is completely unprepared for the things he finds in the Underground.

Young Bai accidentally kills someone, from then on he enters the world of killers.
A black card appeared in front of the door of pale throne, who can get the ultimate weapon left by the most successful killer?
To kill, to follow the road of killing, is it also the road to finding oneself.

Saki Asamiya, after being incarcerated in a youth corrections facility, is recruited by a detective named Jin after convincing her that the government could provide clemency for her mother, who was on death row. He trains her to be an undercover youth detective, infiltrating several high schools in Japan to investigate cases of crime, corruption and terrorism in the legend of a high school student..

A normal person, Xin Yun, received a second chance by transmigrating to an unknown world. But because he chose to indulge in women, he lost his chance to become the most powerful. When he gets caught by the force a struggle between the nine most powerful experts, something unbelievable happened, or it could be said that a miracle occurred. Xin Yun was reborn and sent back to the place he had transmigrated over to. Having been reborn, Xin Yun decided he wanted to become the strongest being together with the three top experts from his previous life: the most beautiful dragon- Sparkling Butterfly, Yi Luo Xiang, the cruel dragon- Evil Empress, Yan Qing Ying, and the most dazzling dragon- Peacock King, Ming Xuan! Furthermore, he wanted to pursue love with the most beloved person from his previous life- Yi Luo Xiang! Xin Yun, making use of his good fortune, used his memories from his previous life to prioritized becoming friends with Yi Luo Xiang, Yan Qing Ying and Ming Xuan. He even received a godly artifact from his previous life- the Heaven Splitting Axe!

Zombies are here

Humans live in the overworld, and demons in the underworld.
There is only one way for humans to travel between the worlds.
Mankind's last hope: WARBLE.