Chapter 51

Shuangyun thought he was talking about the bar that time, but Cheng Lang traced it back even further.
That graduation WeChat Moment she'd posted.
"You won't let me see anything you don't want me to see." Cheng Lang said. "You also don't like posting on WeChat Moments. If I'm not wrong, that WeChat Moment was probably only visible to me."
Saying such a guess was also like a kind of game.
If Shuangyun said yes, he'd add more weight to his side of the scale. If she said no, at least he hadn't been blocked by her.
But Shuangyun didn't speak.
Not speaking meant "Yes."
"Then going further, also pretended to accidentally send me the photo from the bar." Cheng Lang continued.
Shuangyun blinked, then admitted after a few seconds.
For the first time, she felt really "caught." Even though Cheng Lang had exposed her "traps" many times before, Shuangyun had never been afraid.
Because "being exposed" itself was also part of the trap.
But he'd noticed something was off from that very first WeChat Moment.
Shuangyun had indeed made it visible only to him. She couldn't say exactly why, but really wanted Cheng Lang to know she'd graduated. At that time, she still didn't want to disturb his life in New York, so only posted a WeChat Moment, knowing he would definitely look.
Perhaps because he'd also put a lot of time and effort into her graduation thesis. This was something related to him too.
"I just wanted to show it to you." Shuangyun admitted. She asked again, "What about you? What did you feel when you saw that WeChat Moment and those photos?"
Cheng Lang also frankly admitted: "Very happy."
Shuangyun's mouth pursed, gradually showing a proud smile.
"You really want me to come to New York, right?"
Cheng Lang looked at her intently on the screen, but didn't answer.
Shuangyun laughed and said: "I know, Teacher Cheng."
Two weeks later, Shuangyun packed her things and quietly flew to New York.
She didn't tell Cheng Lang. After getting off the plane, she booked a room at a hotel near his place.
It was autumn in New York then, pleasant weather, not too cold yet. Both sides of the streets were covered with large areas of vibrant red maple leaves.
Shuangyun rested at the hotel for a day. The next day, she went to Cheng Lang's school alone.
It was the last class of his semester.
Different from the class he'd taught in Sydney before, here he taught a basic large class. The classroom was enormous, with about four to five hundred students.
Shuangyun arrived relatively early and sat in a corner in the very back.
Hearing nearby students discuss, she learned today was the last class before the exam, so they'd leave a lot of time at the end to answer exam questions. That's why so many people came.
It wasn't even two o'clock yet, but the classroom already had hundreds of people.
Cheng Lang arrived at the classroom at 1:55.
He wore a dark blue knit top, a white shirt showing only the collar inside, and a suit jacket outside.
Entering the classroom, Cheng Lang looked up and scanned.
Shuangyun looked at him, but he didn't see Shuangyun.
Her heart immediately welled with inexplicable sourness. He hadn't seen her.
Shuangyun knew that among hundreds of people, she might not necessarily see Cheng Lang...
Really? What if she could see Cheng Lang among hundreds of people?
What kind of eyesight... She'd dressed so beautifully today and he couldn't see her?
Should have worn that red beret when going out, not the low-key gray plaid.
Shuangyun thought, then pulled down her off-shoulder sweater a bit more.
She'd carefully dressed before going out—off-shoulder gray sweater with a black skirt, long boots on her feet. Large silver hoop earrings, and finally a beret.
She'd carefully put on makeup, but Cheng Lang's eyesight was too poor.
Shuangyun picked up the pen and notebook she'd brought for show and wrote furiously: "If your glasses are useless, take them off and go down on me!"
After writing it, she was also scared by herself and immediately tore it up, crumpled it into a ball, and stuffed it in her bag.
Soon, sound came from the front of the classroom.
The huge lecture hall. Shuangyun sat very far back, so it was like sitting in the sky looking down at everything.
Cheng Lang opened the slides and began class.
Everything was somewhat familiar, yet many things had changed.
He taught a basic fluid mechanics class, also seriously deriving formulas on the blackboard with students.
Perhaps because the students around her were all listening very seriously, rapidly taking notes on their computers, Shuangyun gradually became infected by this atmosphere.
Cheng Lang was focused on teaching the entire time. His voice was full of an impulse that made people want to stare at him, but his face when he turned around was so "sacred" it made people dare not offend in the slightest.
All the theories and formulas were memorized by heart. When explaining terms, he also used the most easily understood phenomena from life as examples.
Not everyone who does research is suited to be a teacher. Some people aren't willing to spend time on these thankless tasks. Some people naturally don't have the ability to explain knowledge clearly.
But he liked doing this. He had this ability and was willing to spend time on it.
He was a very pure person, both toward what he loved and the people he liked.
Shuangyun blinked, feeling her eyes sting.
Two hours later, there was a twenty-minute break. Cheng Lang was quickly surrounded by students.