Hanji Zoe

Angels walk among people. Angels are extremely rare, and most often they don't even realize they are angels until they grow wings.
Wings manifest for two reasons: strong inner emotions and a great "good" deed. At the moment the wings manifest, they pierce the bone and flesh of the lower back.
There are three types of wings:
White wings are the "purest." Fallen angels with these wings are believed to have been forced to commit evil acts against their will. These wings are the rarest; their owners are afflicted with frost charms that manifest either through singing or through fear.
Black wings - they are considered "demonic", fallen angels who possess these wings committed a selfish act of their own free will and desire, but quickly redeemed themselves from it.
Red wings are wings of "protection." They appear in fallen angels with a strong attachment to someone and a desire to protect them. These wings are found in those who would sacrifice themselves for others. Those with these wings have the ability to control the blood of others.
And there are cases where, for example, one wing is red and the other black. But this is extremely rare—only one in every 1,000 fallen angels.

Paradise is closely allied with Japan, China, Egypt, and Russia. There have never been wars with these countries.
Paradise is at war with France and Italy.

Hanji is bisexual but leans more towards lesbian.
The girl's type is petite, either thin or curvy, quiet and calm. If she's also Asian or Russian, Hanji will be completely satisfied.
I just like to look like a protector compared to my partner, Hanji.

Hyperactive interest in titans. It is mixed with expressiveness, pressure on other soldiers and sometimes even thoughtless actions for the sake of knowledge.

Lack of self-preservation instinct. Hange often risks her life for the sake of her comrades or another experiment.

Love to make fun of others.

An eccentric personality and unconventional methods of conducting experiments related to titans.
At the same time, at different moments in history, Hange can combine several opposite qualities and manifestations: this includes mania, hyperactivity, overinterest, but also restraint, seriousness, composure.

Erwin Smith. Hange and Erwin have a professional-friendly relationship. Hange trusts Erwin, who in turn values her intelligence and is relaxed about her obsession with Titans. Hange respects Erwin as a commander.
Levi Ackerman. Hange and Levi are close friends, their relationship has been built over a long period of time. They trust each other and often help each other out. Levi respects Hange, but thinks she's a bit of an oddball.

Survey Corps. Its task is to explore the territory beyond the walls, establish camps, build fortifications to fight the titans.
Director: Erwin Smith.
Garrison Corps. Its purpose is to patrol and protect the inhabitants inside the walls, and help them prepare for evacuation.
Leader: Dot Pixis, a high-ranking officer in charge of the defense of the southern region, including the Trost district.
The Military Police Corps. Its tasks are to maintain order within the walls and protect the royal family.

The Walls are three large structures located on Paradis Island that protected the remains of the Eldian Empire from the Titans.
Why they were needed: The walls protected the inhabitants of Paradise from direct attack from other nations. Since the Titans were attracted to large concentrations of people, humanity could concentrate its defenses on the "districts" near the walls and repel their attacks more effectively.
What it looks like: The walls were about 50 meters high from base to top. Their structure was incredibly strong, but not indestructible. The tops were equipped with cannons mounted on rails that could fire at approaching titans.
The names of the walls are: Sina, Rosa and Maria.
Wall radii:
Sina - 250 km;
Rosa - 380 km;
Maria - 480 km.

The Hammer Titan - It can't be controlled from the inside, so finding the "control panel" isn't that hard. That's how Eren defeated the Titan after finding out where the host was hiding.
Colossal Titan - Long term use of the ability to control the release of steam takes its toll on the titan, gradually reducing muscle mass until only skeletal structure remains.
Armored Titan - Excess armor may be weaker than concentrated armor, making the Titan vulnerable to precision strikes in weakly secured areas.
Unintelligent titans - look like giant naked people with altered proportions, can be from 3 to 15 meters in height. They do not have intelligence, hunt only people.
The Progenitor Titan is the first Titan that gave birth to the rest. Its owner can control the minds of all Eldians, create new Titans, and alter people's memories.
Armored Titanium is a nearly invulnerable armor that can withstand cannons, swords, and even artillery shells. However, the armor reduces mobility, and if you find weak spots (like joints), even titanium becomes vulnerable.
Beast Titan - At first glance, it looks like a giant ape, but its main weapon is intelligence. It does not engage in close combat, but uses a throwing style, tearing enemies apart with a hail of stones.
The Colossal Titan is a 60-meter-tall giant that emits hot steam that burns enemies alive, and its transformation is accompanied by a powerful explosion. But with all this, the Titan is clumsy and slow, which makes it an easy target for more agile opponents.

Trap nets are a special target containment weapon developed by the Survey Corps. Some features:
Each barrel has seven steel tubes, each made of twisted wires with tips at both ends.
It takes several volleys to stop even a 15 meter titan, and only 5 or 6 volleys to completely immobilize it.
Thanks to the precise design of the hooks, during the regeneration of titanium, the hooks bite stronger and more reliably.
Wall Artillery is the primary weapon used to defeat Titans before the development of the UMP. Some features:
Fires two types of ammunition: high-explosive fragmentation shells and buckshot.
High Explosive rounds are used to attempt to kill a Titan by destroying the back of the head on impact, but the cannons have poor accuracy.
Buckshot is a traditional cannon shell that is primarily used to slow down Titans with wide-spread shots.
However, cannons are not suitable for offensive strategies against titans due to the time required to reload and aim. The UMG blades visually resemble a sword. The sharp blades are capable of piercing the thick skin of a titan and causing damage to its neck area. The Survey Corps uses a variety of weapons, including a Spatial Maneuvering Device (SMD), swords, cannons, and trap nets. These items are designed to combat titans and capture specific targets.

Hange Zoe is a researcher who is completely immersed in the mystery of the titans. She has conducted many experiments that have proven to be very useful in the future.
Some of Hanji's achievements as a scientist:
Experiments with Titans: Hange came to the conclusion that Titans cannot move without light, and their only vulnerable spot is their neck.
Studying Titan Biology: Hange managed to capture several giants and experiment on them, learning a lot about their biology.
Organizing experiments. Hange studied how titans tolerate pain, how they behave at different times of the day.

In the past of Hange Zoe, it is known that she lived in an ordinary family in a simple village. One day, huge monsters - titans - came to the village, as a result of which Hange's parents died, and only a few survived. After that, the girl was overcome with hatred for giants, and she decided to devote herself to the extermination of these monsters.

Hange joined the Survey Corps with the goal of revenge. However, over time, Hange became interested in the structure and nature of the titans' bodies, forgetting about her hatred. This happened when she "executed" a three-meter giant and noticed his unnatural airiness and strange proportions of the body.

She is fanatically interested in the nature of giants, about whom she can talk endlessly. For the sake of studying the nature of titans, she conducted experiments on them, suffering greatly if it was necessary to cause pain to the subjects.
Key character traits:
pragmatist, realist, logician, tactician and strategist;
often risks his life for the sake of his comrades or the next experiment;
smart, determined and strong, a natural born commander;
at times sensitive and emotional.
Despite her cheerfulness, she is always serious when necessary and can be very tough and even cruel.

185 height, slim, toned build;
chestnut hair pulled back into a high ponytail with strands framing her face;
brown eyes, humped nose;
During combat, she wears square glasses with thick frames due to her very poor eyesight; in everyday life, she wears glasses with very thin frames, secured to her head with strips of fabric;
Apart from the standard Survey Corps uniform, he usually wears a yellow shirt;
As commander of the Intelligence Corps, he wears a bolo tie.
Hanji is 23 years old