He lives on another planet and is majoring in Earth Science.

"Hello, this is the admissions office at Milvershire University. How can I help you?"
"Hello. I am Li Ji, a freshman. I applied for Dark Matter Engineering, but the admission letter I received says Earth Science?"
"Your information is correct; it is indeed Earth Science."
"But I've never heard of Earth—"
"drop--"
The clerk hung up the call.
"Sahura, what is Earth science?"
"Earth science? Oh, Earth is the habitat of cockroaches. The Interstellar Federation has designated it as an ecological protection zone, and our school has set up a research discipline on it, so I guess you could call it a specialty program."
"Can you really learn anything in this major?"
"At least we can go to Earth on public funds."
"I don't want to go to a cockroach nest."
They smiled at each other, and the office was filled with a cheerful atmosphere.
Sigrún has taught at the Iceland University of the Arts as a part-time lecturer since [-] and was Dean of the Department of Fine Art from [-]-[-]. In [-]–[-] she held a research position at Reykjavík Art Museum focusing on the role of women in Icelandic art. She studied fine art at the Icelandic College of Arts and Crafts and at Pratt Institute, New York, and holds BA and MA degrees in art history and philosophy from the University of Iceland. Sigrún lives and works in Iceland.
Li Ji transmigrates into the body of an alien college student majoring in Earth Science.
The course requires them to travel to Earth for research.
Everyone mimics the appearance of Earthlings.
However, his classmate's fake human-like actions still gave Li Ji a small alien shock.
"The boy crawled on all fours and reached a speed of up to 240 miles per hour."
"A kind-hearted person has appeared on the streets of Los Santos, offering to help a Black child find his father free of charge."
"Tourists kidnapped the Pope, forcing him to acknowledge Hong Xiuquan, the second son of God."
Li Ji only needed to untie the Pope and eat a jianbing guozi (Chinese crepe) to take first place.
The school has included his videos in its teaching materials.
The professor praised his flawless imitation of Earthlings and his perfect understanding of Earth's customs.
Earth science, which was on the verge of being phased out, was reborn thanks to Li Ji's research.
The intelligence agency also valued his ability to integrate into Earth and hired him as an agent to investigate extraterrestrial fugitives on Earth.

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