Over Image manga

Inside of every human lie dormant superpowers. When these powers are awakened, some people use them for evil. Others use their power to stop those who commit evil deeds. One cruel boy named Hiruko has taken over his high school by using his superpowers. The students live in fear of him, until the day a mysterious transfer student, with his arm wrapped in a giant cast, arrives to stop him. 

Kazama’s family died in a mysterious explosion when he was still young and since then, he has not been able to come to terms with their deaths or even with himself. He emotionally distances himself from everyone and his aggressive nature gets him the nick name “Real Life Combat Game Character.”Years later, Kazama, now in high school, gets close to death after a car accident. As he accepts his fate, Sky Blue enters his consciousness. Somehow related to the multicolored meteors that were seen all around the world on the same day of Kazama’s near fatal accident, Sky Blue is able to control his body. The teenage-looking Sky Blue is able to control Kazama’s body movements and even his speech. He falls for the beautiful but cold Haioka Anna and when she gets kidnapped, Sky Blue takes over Kazama’s body, unleashing enormous amounts of power and strength. 

The Kirionira are the demons that live in another dimension and invade the human world through their dreams. The only defense humanity has against the demonic assault are the hunters who rely on their sex drive as a source of power to fight against them. Riku Yoichi came from a long line of hunters and had high amounts of sexual energy which allowed him to be a great hunter. He moved away from his home town after middle school to demolish the Kirionira and was successful in finishing off the king and ending the battle forever. However, the peace came at the price of Yoichi losing his sex mojo. Returning back to his home town, he soon learns that the demon invasion was not over, but without his sex drive, he is helpless to fight back. He tries convincing his childhood friend Namba Midori and her female classmates to get him sexually aroused, but they want nothing to do with it.

The Unsinkable Katsuragi Musashi is attending his 1st day at school, a month into the semester. He is called that because through a series of lucky incidents he has never lost a fight. Not 5 minutes into his 1st day, he is drawn into a fight to save an old friend, Kaoru. After taking down 2 guys in one shot, he is saved from taking on 6 more when the vice president of the student council and resident idol, Kagura Mami, shows up and stops it from going any further. Which is strange in and of itself since she never helps anyone. Later on, while running from his childhood friend, Akane, Katsuragi stumbles across an old school building with a mysterious large door inside, that cannot be opened. The opening of the door, this one event would change his life and effect those around him. Now suddenly, he is being named successor to the student council president by Kagura, who is now living with him and chosen students, himself included, are imbued with supernatural powers akin to animals. Also, Katsuragi now has a tail.

Transfer student Manabizaki Kyou is a swot, a person who spends too much time studying. His dream is to attend Tokyo University and then work for NASA! He will soon discover, however, that the high school he is transferred into, which was once very prestigious, has taken in delinquents from the surrounding schools. Now it is full of violence and gang fights.

Luckily, Manabizaki has a surprising skill at fighting, particularly when he is defending the peace of his study area. Through this strength he will find his new friends, a weak boy called Iwashida and a legendary delinquent girl, Hasuno Nene, who makes him feel things that, for the first time in his life, he cant explain... (Source: Mangaupdates)

In a world after death, angels fight for their fate and their future. Yuri, the leader of the Shinda Sekai Sensen, rebels against the god who destined her to have an unreasonable life. On the other hand, Tenshi, the chairperson of the student council for the world after death, battles against the SSS members. SSS members utilize armed weaponry to battle it out against the angels harnessing supernatural powers.

The Hwarangs is a society composed of youths from Shilla, an ancient Korean kingdom that lasted until the 10th century. The members of the Hwarang society had large influence in many facets of Korea life and played key roles in many arenas, including: military, art, politics and culture.

From Shinnen:

Hibiki and Tomoe Kazema are two sisters attending an ordinary high school, but unbeknown to their teachers and fellow students, they are members of a hidden group of ninjas. Their mission is to use their special powers to exterminate the akuma that are plaguing the world. This is made difficult by the fact that their enemies can possess corrupted humans who eventually turn into new akuma.

Despite being faced with an ever growing army, the two are determined to prevail as The two flowers that will slice through the darkness. The only question that remains is will they succeed against such overwhelming odds?

The story revolves around high school student Akira Nikaido, a typical slacker living a normal life. That is, until he meets the mysterious Shirogane, a man who suddenly appears and tells him that they have a destiny together. When Akira hears this, he is shocked and doesn't believe a word of it. Aya, a friend of Akira, forgets something in the school one night, and asks Akira to help her and go find it. He agrees, and while there, he gets attacked by a shadow monster. Shirogane convinces him that the balance between the human world and the shadow world has been distorted and that Akira must become a "shin"- a creature of the shadow world- in order to help restore the balance.-wikipedia

Sequel to Fate/Kaleid Liner Prisma Illya. IIlya and Miyu were dragged again by Rin and Luvia. Their job this time was to normalize earth's pulse, which went haywire after they started to collect the cards. After completing the ceremony to normalize the earth's pulse, disaster struck. Illya took action to protect the company, only to find out that a clone of her is sitting beside her after the danger passed. How will she cope with this new crisis?