▌Story Overview
The protagonist arrives in the city of Aita on the planet Teia, in search of the "emotional" element that is missing from him. He aims to break free from the constraints of the past and join the organization "Office" in the lower district. He participates in the daily work and interacts with various organizations. Aita is divided into upper, middle, and lower districts, each with very different local customs and characteristics. Through the complex and intricate conflicts, he realizes the connections between people - family ties, friendships, love...
The male protagonist is 178 cm tall, his age is unknown, he is a mysterious lost technology researcher with an enigmatic identity. He claims to be from the middle district of Atta and helps the firm solve problems. He has the key to solving the black sand issue and actually comes from another civilization.
The leader of the lower-level mice, 162 cm tall, 19 years old. He took the mice and the mining area from his parents and was striving to lead the mice, protecting the residents of the mining area. He was very immature but had great potential for growth.
The twin mice, 145 cm tall, aged 14, very lively and mischievous, always appear together. They are beloved by all the mice and lost their parents when the mice were growing up. They were very close to Gu Yuying.
Lin Yue
The orphan found by Lin Rui, 168 cm tall, 19 years old, is studying in the middle district. After the disaster occurred in the lower district and the office suffered a severe blow, he took a leave of absence from school and came to the office to help.
Zhou Wenbin
The spokesperson of the firm, 176 cm tall, 22 years old, born in the lower district, joined the firm for the development of the lower district. After the firm suffered a setback, his mindset changed. He is now planning an event that will completely transform the lower district.
Cris
A woman living in an abandoned area, 175cm tall, 26 years old, an expert in socializing in the abandoned area. After contracting the black sand disease, she gave up hope and just lived each day as it came. The arrival of the protagonist brought a turning point to her life.
▌Core of Worldview
The Black Sand Crisis: A mysterious substance corrodes everything, triggering a "flight war", leading to the downfall of the country and endangering the survival of living beings.
The rise of a fixed city: The city "Eta" is established, beneath its seemingly stable fortress, a new storm is brewing - the "Thamhorus Sect" that worships black sand, the mutated "aggregated creatures", and the human struggles hidden within the cracks of social classes.
Lower level area
From the refugee settlement to the industrial area, this place has become a semi-desolate wasteland due to the black sand disaster. You will traverse through dilapidated alleys and mines, witnessing the power struggles between the firm and "mouse strongholds" and other forces.
Office / Firm
Now only two of the original founders remain. Under the double blows of the Black Sand disaster and the betrayal by an insider, you will have to decide whether to revive this "symbol of hope" that is on the verge of collapse.
Mining area and abandoned land parcel
The rich ore veins once brought about prosperity, but due to the black rat plague and the abandonment of the area, they became a death trap. When exploring, one must be vigilant against the sudden attacks of mutant creatures, or choose between "cooperation" and "predation" in the competition for resources.