Turning around, she saw a middle-aged professor dressed in unusual clothes standing behind her.

He was wearing a retro-style linen shirt and a pair of round-framed glasses with real glass lenses on his nose; the temples even had some paint chipping.

This outfit looks like it crawled out of a museum in the interstellar era.

Even more outrageous, he held a stack of yellowed paper documents in his arms as if they were precious treasures. The title of the top book was "A Study of Ancient Earth Cooking Utensils," and there were brown marks, which looked like coffee stains, stuck to the edges of the pages.

"I am Professor Li, the head of the Department of Interstellar Archaeology."

"You are the only freshman in our major this year... well, the only freshman."

He pushed up his glasses, and the lenses reflected a hint of unease.

"Just me?"

Zi Xi blinked, pointing incredulously at her own nose with her index finger.

"Yeah, just you."

"There were three students in the previous class, but they all transferred to the mecha repair department within two weeks of the start of the semester."

"Young people today are no longer interested in exploring the past."

"You...you didn't choose the wrong major, did you?"

Professor Li sighed, took out an old-fashioned pocket watch from his pocket, looked at it, touched the stack of documents, and suddenly asked Zi Xi a question.

Zi Xi's lips twitched: "No, teacher, I didn't make a mistake. I was just surprised that I was the only one."

Professor Li led her through the long corridor, their footsteps echoing eerily in the empty space.

The moment the classroom door was pushed open, the motion sensor light flickered twice before turning on, and a wisp of suspicious dust even drifted out from the corner.

"Don't worry about the details; the funds have all been used to buy items from ancient times."

Professor Li waved his hand to disperse the dust, and the holographic projection lit up with a snap, displaying the course schedule in the air.

Monday morning's class was an overview of ancient Earth civilizations, held in a classroom. Tuesday afternoon's class was on prehistoric crop cultivation, held in the archaeology department's laboratory. Wednesday's class was canceled, and Zi Xi saw underlined words about possible research on the restoration of lost plants. Thursday's class was on the study of primitive human culture, also only in the morning. There were no classes on Friday.

Each class is only two hours long; you can arrange the rest of the time as you wish, as long as you arrive on time for the exam.

The degree of freedom is very high, no wonder living in the dormitory is not mandatory.

Zi Xi's eyes widened; this lesson was much shorter than she had imagined.

This is simply giving her enough time to go home and farm.

"Interstellar archaeology mainly studies the ancient period, such as this..."

Professor Li didn't notice her expression and clicked on a holographic image.

A rough pottery jar appears in the picture, with several cracks along its edges.

"This is an ancient cooking utensil, used for..."

"Isn't this just a clay pot?"

"The curved edges are designed for even heating, and the thickened bottom prevents burning! Oh, and by the way,"

"This beveled surface isn't damaged; it's a specially designed flow guide!"

Zi Xi blurted out, pointing to the mouth of the jar.

"...How did you know?"

Professor Li's hand froze in mid-air.

"I love learning, and this texture is an anti-slip design. Plus... this soil is mixed with shell powder, making seafood soup especially delicious!"

Zi Xi had already moved closer to the projector, poking at the spiral patterns on the side of the pottery jar with her finger, and said information that even Professor Li didn't understand.

Professor Li's glasses slipped down to the tip of his nose.