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The teen titans Robin, Raven, Starfire, Beast boy and Cyborg 5 superpowered teens use the powers to fight the forces of evil.

After witnessing the “Little Giant” of Karasuno play in a national championships volleyball match, young Hinata Shoyo instantly gets inspired and decides to revive his school’s volleyball club. Although managing to force some of his friends to join his team and even participate in a tournament against other schools, Hinata’s inexperienced team terribly loses their first game against the prodigal “King of the Court” Tobio Kageyama. Instead of losing interest, Hinata’s thirst for the game only grew, and he vows to someday defeat Kageyama in court. Following his idol’s footsteps, he enrolls in Karasuno High School to join its volleyball club even though it has already lost its popularity. Much to his surprise, he finds his rival Kageyama is also in Karasuno, and that they are now teammates.

In 2012, the world allegedly comes to an end at the hands of a "human-made" virus, ravaging the global populace and leaving only children under the age of thirteen untouched. It is at this time that vampires emerge from the recesses of the earth, likely followed by age-old horrors of the dark thought only to be myth. The vampires sweep the earth and claim it in a single violent stroke, subjugating the remnants of humanity and leading them beneath the surface to safety. This "protection" comes at the price of donating blood to their captors. At the age of twelve, Yuichiro and his friend and fellow orphan Mikaela plotted to escape along with the children in Hyakuya Orphanage. However, this resulted in their deaths and Mikaela sacrifices himself in order for Yuichiro to escape and be saved by members of the Moon Demon Company, an extermination unit of the Japanese Imperial Demon Army. Four years later, Yuichiro dedicates his life to destroy vampires and seek revenge against them for murdering his "family".

While on the surface Yuu Otosaka appears to be just another charming and intelligent teenager, he has a secret—he has the ability to slip into people's minds and fully control their body for five seconds at a time. Yuu has been using this skill for years to gain the highest grades, which allowed him to enter a prestigious high school. When the enigmatic Nao Tomori catches Yuu using his power, she coerces him and his sister Ayumi into transferring to Hoshinoumi Academy, a school for students with supernatural abilities. The student council of the school, led by Nao, is tasked with secretly tracking down adolescents who abuse their powers. Yuu is forced to join the student council and together, they face formidable challenges that bring him closer to the shocking truth that his own, seemingly incomplete ability, might be more powerful than he could have ever imagined.

The Great War finally came to an end after four long years of conflict; fractured in two, the continent of Telesis slowly began to flourish once again. Caught up in the bloodshed was Violet Evergarden, a young girl raised for the sole purpose of decimating enemy lines. Hospitalized and maimed in a bloody skirmish during the War's final leg, she was left with only words from the person she held dearest, but with no understanding of their meaning. (MyAnimelist)