Attack on Titan: Lost Girls - Recommendations

• Vol: 3; Ch: 22
• 2000 - 2002

In the holy land of Nostralgia, isolation is the norm. Surrounded by a towering wall and a waterfall, its citizens are forbidden to try to climb the waterfall, for only demons live outside and leaving will bring a great calamity. Milo is a talented machinist who lives in Nostralgia and pines for her fiancé, Albert, who broke the law and escaped to the outside world years ago. She longs to find him someday, and when she finds a strange machine in the water that says its name is Edison, it seems that Milo finally has her chance...

• Vol: 1; Ch: 13
• 2012 - 2013

A floating ring has been passed down through Mikko's family for generations. Her grampa told her that the ring bears a promise of reuniting with lost ones who departed to the "other world." Mikko explores her world -- an endless network of tunnels -- in hopes of finding the "other world" one day...

• Vol: 20; Ch: 181
• 2016 - 2020

Emma, Norman, Ray, and many other "siblings" live at an isolated orphanage cut off from the outside world. They live a charmed life surrounded by friends and watched over by Mama, their caretaker, until they leave the house for a foster family by the age of twelve. The only rule is that they must never venture outside of the gate that isolates them from the rest of society, for dangers await. But one day, the children learn the true horror of what's in store for their short lives... 

• Ch: 27
• 2017

A village, hidden in the forest, holds mysteries… But what happens when a foreign girl enters it?

• Vol: 2; Ch: 10
• 2014 - 2015

Long ago, angels and demons engaged in a fierce war; and to keep humans safe, angels built the city of Ilvia. In the center lies a walled sanctuary where special children must live until their fourteenth birthday, at which point they graduate and leave for paradise with Amalda, their angel caretaker. Akira, Yuno, and their friends are about to turn fourteen, and their curiosity leads them to sneak outside of the walls for a peek of paradise, not realizing the horror of what awaits them...

• Vol: 4; Ch: 24
• 2018 - 2019

Airi is an average 12-year-old girl. She goes to school, hangs out with her friends, and loves being outdoors. The thing is, she can only be outside for 30 minutes a day. Welcome to Airi’s life. A catastrophic nuclear war reduced the world to a radioactive wasteland and forced her and other humans to live deep underground. But, this doesn’t bring Airi or her friends down. As they explore aboveground, they make shocking discoveries not taught in school. What do Airi and her friends unearth?

• Vol: 23; Ch: 97
• 2013 - 2023

Floating on an endless sea of sand, an isolated civilization resides on an island-like vessel known as the Mud Whale. The lives of many of its citizens are short, due to a power they wield called "thymia", and they have very little knowledge of the lands beyond their desert home. Young archivist Chakuro wants to acquire as much knowledge as he can in his short lifetime to pass on to future generations, and an opportunity for him to learn more arises when a lone girl is discovered living alone on a similar vessel. She is the first human being the people of the Mud Whale have ever seen, and she possesses a great deal of information that they do not - about the outside world and even the secrets of the Mud Whale itself. With her arrival, everything in their world begins to change.

• Vol: 1; Ch: 6
• 2007 - 2011

For the last 400 years, an island has been completely surrounded by walls, isolated from the rest of the world. Aira and Marue have always dreamed of voyaging outside the walls, where lies a devastating truth unbeknownst to them.

• Vol: 4; Ch: 28
• 2010 - 2013

God forsook the world on a Sunday, leaving mankind unable to stop living - even long after they've died. The sole hope left for humanity comes in the form of gravekeepers; only a burial by one of these chosen few will allow the deceased to finally rest in peace. Ai is a young girl who serves as gravekeeper for her sleepy village, taking over the job after her mother’s death five years ago. However the tranquility is shattered when Ai returns from digging graves to find that everyone in town has been slaughtered, and the culprit is a young man going by the same name as her long-lost father: Hampnie Hambart. Forced to lay to rest everyone she's ever known, Ai must now forge her own path into the unfamiliar world in search of answers.

• Vol: 1+; Ch: 8+
• 2024 - ?

The remote town of North Hill has been quarantined to prevent the spread of the mysterious Couper disease that is turning people into cannibals. Young soldier Billy returns to his hometown for the first time in six years for the woman he loves, but what horrors will be awaiting him...?