OVA Anime

During Japan's feudal era, there is a war between two ninja clans: the Byakuro and the Kabusu. Then, one night, the Kabusu stage a fierce attack on the Byakuro castle in hopes of kidnapping the clan's infant princess. Their mission is foiled when a loyal ninja of the Byakuro flees the attack with the princess and disappears, eventually raising her to be a ninja. Several years later, six ninja trainees are given a mission to infiltrate the Kabusu-occupied Byakuro castle and retrieve a sacred scroll to complete their training. But their skills are put to the test when they encounter three members of the Kabusu, who use dark sorcery in an attempt to once again capture the princess - who happens to be one of the trainees.

(Source: Anime News Network)

Mysterious warriors appear to blast Miki into another dimension! She flees her captors only to find herself trapped in a world of monsters and madmen who plot the downfall of Earth.

The only power that can possible save her (and the world) is that of the mysterious Mask of Zeguy. Miki must embark on a life-or-death quest for this talisman, with the villains who kidnapped in hot pursuit!

(Source: AniDB)

The OVA adaptation Moe Can Change! is created by Frontier Works, based on a free-to-play game developed by Ambition for mobile phones. The original "playful bishoujo Miroid-raising / clothes-changing moe game" has the player joining a beta test program for androids, who the player must raise and dress up as girls.

(Source: Animekon)

Shin Koihime†Musou: Otome Tairan OVA.

For centuries, the magic and human worlds have been at peace with each other, though physically seperated by a magical gate. But when the powerful magic spheres are stolen and fall to the Earth below, the king of magic sends Boss, a fighter; Lime, a master transformer; and Poogie, a master morpher to retrieve them. With not much time, the trio must retrieve the spheres which, when in contact with the human world, suck up the negative emotions of household objects and become BEMs, Bug Eyed Monsters!

The land of Zer’lue is in turmoil, ravaged by the technological might of Chairman Sana'ku and his evil, militaristic Zul’earth forces. In a rapidly unfolding story of treachery, deceit and betrayal, only one boy holds the power to defeat such overwhelming odds... a boy named Lue'der, who possesses a mysterious red eye and the ability to control the power of the wind itself. With the fate of the world at stake, Lue'der must learn to unlock his legendary power and battle against the evil which threatens to engulf his planet.

(Source: Anime News Network)

Fresh out of college, Kawase Mitsuro is eager to start his new job as a middle school art teacher. Upon his arrival, he quickly blends in with the masses of girls ogling the toned body of senior teacher Kazama Toshiaki. Kazama ignores the schoolgirls. However, Kazama realizes something is different about Kawase and decides to ask the latter out to dinner. Unconvinced his advances are serious, Kawase goes along with Kazama halfheartedly. When Kazama's true feelings are revealed, will Kawase embrace his potential lover or give in to the expectations of society?

(Source: MAL Rewrite)

The galaxy is a strange and dangerous place, and there are times when even the United Space Force can`t help. That`s where the Crushers come in - skilled troubleshooters who will deal with any problem, large or small, for a fee (large only!) And there is no better Crusher than Crusher Joe!

(Source: AniDB)

Captain Harlock is drawn into a saga of intergalactic proportions when the son of a deceased comrade unwittingly forges the Ring of the Niebelung. Evil forces gather to wage war against the last remaining superpowers of the galaxy led by a demented outcast. Harlock must counter the amassed armadas that threaten the last gods and recover the ring before Paradise is lost.

(Source: Anime News Network)

In a country where companies are categorized into many subdivisions and corporations, only one of them is a ghost corp - the Phantom quest corp. When otherworldly supernatural phenomenon threatens the city and its populace, Ayaka Kisaragi and her employees are on the job to fight any and all supernatural menace.

(Source: Anime News Network)

It was just another ordinary afternoon for our heroine Suzuko when she suddenly got caught in a giant gas explosion. Instead of getting killed, Suzuko wakes up some 500 years in the past during the Civil War era of Japan.

After being saved from a fate worse than death by a handsome, somewhat overbearing young man, Suzuko learns to adapt to the strange realm where she now resides. Along the way, Suzuko finds out more about her mysterious and spotty past. As clues begin to click into place, though, the village is attacked, and Suzuko finds herself travelling through time AGAIN, this time to the present. Will she solve the mystery regarding her origin and where she belongs?

(Source: AniList.co)

Long ago, in the "age of fairy tales," the world's light is protected by seven individuals who reside in Daybreak Town and wield unique weapons called "Keyblades": the Master of Masters and his six apprentices. A devastating conflict has been foreseen, and the world's end is imminent. In order to heal it, the Master of Masters gives his disciples unique roles and instructs them to form Unions comprised of other Keyblade wielders. Soon afterwards, the Master vanishes.

(Source: KH Wikia)

Two OVA that summarize the series.

Ukyo Rettsu, a surgeon, treats a mysterous old woman for a mysterious "cancer." The growth turns out to be a messenger from the ancient past of Japan heralding a demonic invasion of the Earth. Ukyo must go back in time and fight the race of ancient demons.

(Source: AniDB)

The queen is collecting some jewels that apparently endanger the whole universe if they fall into the wrong hands. But Zephel screws up and loses one of the jewels. What should he do now?

(Source: MAL)

A masochistic mobster meets his match in the dark streets of Tokyo. His nemesis, Ichi, is a psychopathic killer with an unrelenting thirst for bloodshed. A horrifying secret burns in his mind, and his hands deal death without mercy. At last, the shrouds of mystery are parted to reveal the origin of the monster. The city will know its greatest fear at the unveiling of Ichi the Killer.

(Source: Anime News Network)

Chi meets someone new at the park and tries to befriend him.

More than twenty years ago, an evil summoner committed "Great Summon". One third of human beings were killed, and devils and monsters invaded the Earth. One day, a painter, Tamura Fukutaro, moves into an apartment house called "Ashiaraiyashiki" and gets involved in the troubles of his non-human neighbors. It's the beginning of a severe battle among gods, devils and the ruler "The Central".

(Source: MAL)