Collei

Collei is a 4-star playable Bow Dendro character in Genshin Impact.

Originally a victim of Fatui human experimentation, Collei wandered the world as a vagrant until she met Amber (Genshin Impact) in Mondstadt. Since then, Collei has turned her life around, and currently serves as a trainee forest ranger in the Avidya Forest.

When Collei first arrives in Mondstadt, due to her past experiences, she is extremely wary and suspicious of people, preferring to be left alone and making her seem cold. Her pessimistic view of the world comes from the mistreatment and abuse she endured everywhere. She also has a rather low opinion of herself, pushing people away because she is "unclean" and says she is unworthy of their time.

She was initially annoyed by Amber (Genshin Impact) because of her cheerful and optimistic personality, but Amber (Genshin Impact) shows her kindness by offering to help her find that something she lost, even insisting they are friends and protecting her from Kaeya Alberich's intimidation multiple times. The two continue to grow closer during the course of the manga and Collei begins to trust Amber (Genshin Impact), becoming less wary of people as her view of the world becomes brighter.

アンバー先輩とコレイさんのお友達コンビby咲嶋まだら

When Amber (Genshin Impact) protected Collei from Barnabas, Collei was touched by Amber's resolve and realizes that she too wishes to be able to protect others. After having her powers sealed by Cyno, she decides to leave with him to Sumeru in hopes of learning more about the world.

By the time she meets the Traveler, Collei is shown to have matured whilst training under Tighnari and is now considerably more positive. She expresses great admiration for Amber (Genshin Impact), whose compassion deeply moved Collei to the degree that it influenced her behavior and hobbies. Inspired by Amber's benevolence, Collei tries to be very helpful and proactive in her Forest Ranger duties and strives to be as friendly as possible to everyone. Although she still has struggles with her literacy and Eleazar, she attempts to discard her past pessimism in favor of pushing forward and doing the best she can regardless.

師匠の迷子探しbyひとひとり

She also developed a deep sense of empathy, extending even to the gods, whom she used to deem forsaken by, she now wonders if they too can feel just as helpless. She states that looking back, her extended hatred towards the world outside the Fatui was "childish." She also expresses guilt over her time in Mondstadt and is interested in apologizing.

Despite her improved outlook, it is clear that Collei has yet to fully put her trauma behind her. Whilst no longer being bitter about it, Collei still finds it very difficult to open up to others about her past and avoids the subject when possible, as it brings back painful memories. Her introverted nature also leads her to occasionally spend time alone in a tree hollow, where she writes about any troubles or frustrations she may feel.

Collei is somewhat of a bad liar, only being able to convince Amber (Genshin Impact) on why she wanted to know about the Fatui's research. She is also prone to panic attacks and breakdowns, and especially hates being pushed or shoved around. Even just trying to touch her might cause extreme fear and discomfort, as shown when Paimon (Genshin Impact) tried to playfully touch her the day they met for the first time in Sumeru. This shock apparently triggered a flare-up of her disease, causing her to be bedridden the next day.

Collei was born sickly, so her worried parents brought her to a seer and begged him to save her. He explained the illness as being "touched by the deev" — supernatural creatures with negative properties — and claimed that had to give their daughter to him in order to save her. However, he was working with the Fatui Harbinger Il Dottore (Genshin Impact) and instead of saving her, turned Collei into a test subject for their Archon Residue experiments.

Whether the Fatui had let Collei go or if she had escaped herself is unknown, but she eventually found herself wandering alone. On account of her sickliness, she was treated poorly wherever she went; she was often abused by passing pedestrians, had stones thrown at, and pushed around. This fueled her hatred for people and gods, and a strong desire for vengeance.

コレイbySkyzzed

The disease Collei is afflicted with is called Eleazar. Unique to Sumeru, this is a disorder that causes dark and hardened scales to form on the body. First symptoms are mild numbness on the affected areas of the skin, but as the disease progresses symptoms of general fatigue and peripheral paresthesia (abnormal sensation of the skin on the limbs) may occur. The final stage of this disease causes complete paralysis of the afflicted person, rendering them completely immobile. These symptoms hint that Eleazar might be a neurological disease. This condition is what causes Collei to be perceived as "clumsy" by other people, as it affects her ability to hold or carry objects, often dropping them to the ground. According to Tighnari, there is no cure for Eleazar, only preventive care may be provided to stop the disease from advancing to a more serious stage. In the days Collei spent with the Fatui, Dottore (Genshin Impact) was able to keep the disease controlled by unknown methods.

Upon the removal of Greater Lord Rukkhadevata's consciousness from Irminsul, Collei and the other Eleazar patients have recovered.