"Lu Yu..."

In the classroom office, the air conditioner hummed, blowing straight onto Lin Beixing’s head.

She was now completely wide awake.

Before her, Math Teacher Zhang sat in a wicker chair, slowly sipping hot tea. With heartfelt concern, she said,

"Your entrance exam scores were solid… So why stop studying once you reached high school?"

"This is senior year—a critical moment. If you keep slacking off, over a decade of effort could vanish in an instant."

"I won’t talk about future regrets. Just tell me—do you feel you’re betraying your past self?"

Jiangshui No.1 High School was known for its strong faculty, each teacher with distinct charm.

Teacher Zhang ranked among the gentlest.

Elderly, with wrinkles framing her eyes and mouth, half her hair silver-white, thick lenses perched on her nose—whether for nearsightedness or presbyopia, no one knew.

Rumors said she’d retire after this graduating class.

Perhaps that’s why she cared deeply for them.

Even now, when most teachers had given up on struggling students, she refused to abandon a single soul, striving to wake them up.

Lin Beixing gazed at the kind-faced teacher, momentarily lost.

As class monitor, she often helped collect homework—interactions with Teacher Zhang were frequent.

Before, she’d always stood before teachers as a "top student," met with warm, approving smiles.

This was her first time facing a teacher from a "struggling student’s" perspective.

Sensing Teacher Zhang’s worried eyes and careful tone, a faint ache stirred in her chest.

"Teacher Zhang… sorry…"

Lin Beixing lowered her head, hesitating to meet the elder’s gaze.

All because *that* Lu Yu skipped math homework.

And true to her morning promise, she’d reported it honestly.

*Lu Yu’s* reaction surprised Teacher Zhang.

Normally… Lu Yu never apologized.

No matter how many times punished or scolded, he’d stand silent—never yielding, never resisting.

Teachers eventually left him be.

But now? This shift felt like hope.

"Never mind the homework," she waved a hand, opened her desk drawer, and pulled out a stack of papers—printed test sheets.

"These are classic problems I’ve compiled over decades. Work through them. They’ll help."

"Thank you, Teacher Zhang…"

Lin Beixing nodded gently.

*This heavy weight…*

Faced with this sudden math homework avalanche, she didn’t know whether to laugh or cry.

Her math was strong—she barely allocated time to it. Finishing all this would wreck her study schedule.

"Read questions carefully. Ask me or classmates if stuck. Hand in two sheets daily. Okay?"

Teacher Zhang was pleased with *Lu Yu’s* attitude. She’d seen seniors start late—sweat poured in youth was never wasted.

"No problem… Teacher Zhang."

"Head back. Ten minutes till class. Stay sharp this afternoon."

She patted *Lu Yu’s* sturdy shoulder lightly.

*Lu Yu* gave a soft "Mm," clutched the papers, and hurried out.

*Lu Yu’s* manner felt oddly off to Teacher Zhang—but she couldn’t pinpoint why.

"Just my imagination…"

She lifted her porcelain cup, blew gently, and sipped again.

Outside the office.

Lin Beixing closed the door softly.

The blast of outdoor heat after the AC sent a shiver through her.

She power-walked toward class—urgency burning in her steps.

Not just to return… but for a far more critical crisis.

Too much cola.

Needed the restroom.

SUPER! URGENTLY! NEEDED! TO! PEE!

—

Elsewhere.

Lu Yu held an English textbook, headphones on, staring blankly at chaotic letters he hadn’t processed a single one of.

His ears were filled with a newly found audiobook—a cozy, funny slice-of-life about raising a catgirl. He loved it.

Just as he got immersed—*beep beep beep!*—message alerts buzzed sharply. He frowned.

Lu Yu had few friends. Fewer messaged him.

This level of spam? First time ever.

"Beep beep beep!!"

Annoyed, he pulled off his headphones.

Unlocked his phone. A flood of messages.

Lin Beixing’s profile: a cute pink rabbit doodle—clearly hand-drawn by her.

Now, beside it, a frantic trail of exclamation marks screamed panic.

*Arctic Little Star: Lu Yu!!!!*

*Arctic Little Star: EMERGENCY!!!*

*Arctic Little Star: URGENT!!!*

Lu Yu lifted his eyes calmly. Typed three words.

*Yu: What’s up?*

*Arctic Little Star: It’s just…*

*Arctic Little Star: …I need to pee.*

A photo of the women’s restroom door popped up.

*Arctic Little Star: Can I go in…?*

Lu Yu’s lips twitched.

*Yu: Go ahead. Later I’ll use your body to tour the men’s restroom. For experience.*

The "Typing…" indicator froze.

Thirty seconds later—a crying cat meme, then:

*Arctic Little Star: …I’m going to the men’s.*

*Yu: Empty right now. Close your eyes. Stalls are on the right. Use a stall.*

Lu Yu was usually reliable.

No way he’d let her near open urinals.

If she saw *that*, she’d scream using his body—and he refused to witness his own body shrieking in a men’s restroom.

He added:

*Yu: Oh. I usually hold with my right hand.*

Sent. Locked phone.

No idea if she’d get it.

She’d figure it out… eventually.