Shows like The Silver Guardian

Located in the center of a remote island, the Abyss is the last unexplored region, a huge and treacherous fathomless hole inhabited by strange creatures where only the bravest adventurers descend in search of ancient relics. In the upper levels of the Abyss, Riko, a girl who dreams of becoming an explorer, stumbles upon a mysterious little boy.

Natsuki Subaru, an ordinary high school student, is on his way home from the convenience store when he finds himself transported to another world. As he's lost and confused in a new world where he doesn't even know left from right, the only person to reach out to him was a beautiful girl with silver hair. Determined to repay her somehow for saving him from his own despair, Subaru agrees to help the girl find something she's looking for.

Aoba lives on Midorijima, a small island to the southwest of the main islands of Japan. He lives with his grandmother Tae while working part time at a junk shop. The popular pastimes on the island are the ongoing turf war called "Libstease" and an online game set in the virtual world of "Rhyme." Aoba isn't involved in either, preferring to live peacefully, until one day he is forced into a Rhyme battle.

Spurred by the flame raging in his heart, the Black Swordsman Guts continues his seemingly endless quest for revenge. Standing in his path are heinous outlaws, delusional evil spirits, and a devout child of god. Even as it chips away at his life, Guts continues to fight his enemies, who wield repulsive and inhumane power, with nary but his body and sword—his strength as a human.

In the year 2138, virtual reality gaming is booming. Yggdrasil, a popular online game is quietly shut down one day. However, one player named Momonga decides to not log out. Momonga is then transformed into the image of a skeleton as "the most powerful wizard." The world continues to change, with non-player characters (NPCs) beginning to feel emotion. Having no parents, friends, or place in society, this ordinary young man Momonga then strives to take over the new world the game has become.

.hack follows several young players as they navigate the vast, mysterious MMORPG known as “The World” – a place, it turns out, that is sometimes impossible to leave.

Usagi Tsukino is chosen to be a guardian of justice and is sent on a quest to locate a Silver Crystal before the Dark Kingdom invades the Earth.

Takato, Ruki, and Lee are children who have, by fate, received real Digimon, unlike the imaginary ones in the card game they play. Each of the children, or Digimon Tamers, have their different views on how Digimon should be treated. But when other Digimon begin to appear around Japan, they must put aside their differences to fend off the digital intruders.

An ordinary high school boy fails to get into any private academy except one — which happens to be populated by supernatural creatures disguised as humans. To survive, he has to pretend that he is one of them and blend in.

Yuki Takeya, Kurumi Ebisuzawa, Yuri Wakasa, and Miki Naoki decide to stay over at school. Along with the school adviser Megumi Sakura, they suddenly find themselves to be the final survivors of a zombie attack, and continue to live and survive at the school.

Misaka's electro-manipulation skills - and her delightfully destructive railgun projectile movement - make her a rock star in Academy City. The techno-metropolis is filled with supernaturally powerful students known as Espers, including Misaka's flirtatious friend and roommate, Shirai Kuroko. She uses her teleportation skills as a member of the Judgment law enforcement team, fighting crime alongside fellow agent Uiharu. Joined by their friend Saten, a spunky Level 0 Esper, Misaka, Kuroko, and Uiharu have a blast taking on danger whenever and wherever it arises.

Ayumu was murdered by a serial killer and resurrected as a zombie by a cute little Necromancer. Then he got mixed up with a magical girl and a vampire ninja! With a harem like this, Ayumu could end up even deader before figuring out who killed him!