By the middle of October, the monsoon rains had slowed to a unpredictable, lukewarm drizzle that fell every afternoon at exactly four o'clock.
The third-floor library smelled like old paper, damp wool blazers, and the metallic tang of the ancient wall-mounted air conditioner that hummed like a lawnmower.
They were spread out across a large, scratched teak table in the corner where the Wi-Fi signal was too weak for anyone else to care about.
Krit had his face flat against his open physics textbook, his arms wrapped around it like a pillow. Every three minutes, he would let out a long, muffled groan directly into page 142.
"If a train leaves Bangkok traveling at sixty kilometers per hour," Krit mumbled into the paper, "I don't care where it goes. I hope it crashes into the physics department."
"It's simple velocity, Krit," Mali said, not looking up. She was working through a set of architectural drafting exercises, her mechanical pencil making rapid, precise click-click-click sounds against a sheet of heavy grid paper.
"It's not simple," Krit said, rolling his head to the side so one eye stared at Phuwin. "Phuwin. Tell her my brain is full. There is no more room for trains. My brain is ninety-percent taro tea and ten-percent basketball stats."
Phuwin didn't answer right away. He was sitting with his phone in his palm, scrolling through his photo gallery.
He stopped on a photo from two months ago: the night market after his ex had stopped texting him. In the picture, Krit had a red plastic bowl balanced on his head, and Mali was trying to hide her face behind a skewer of grilled squid.
It felt like a picture taken five years ago.
"Phuwin?" Krit poked his foot under the table, kicking Phuwin's sneaker. "You're doing the staring thing again. Who are you mourning now?"
"Nobody," Phuwin said, locking his phone and sliding it into his pocket. "Just realizing term exams start on Monday."
"Don't remind me," Mali said quietly. Her pencil stopped moving for a fraction of a second, leaving a tiny, dark graphite dot on her neat blueprint line.
Her Chiang Mai application results were coming out in three weeks. If she passed the initial portfolio review, the interview was in late November. Everything—the quiet house, her father's silence, the shift in her life—was waiting behind that single digital announcement.
"Hey," Krit said, sitting up abruptly and wiping a crease of textbook impression off his cheek. "No heavy faces in the library. Sanan will see us and give us extra homework."
He reached into his school bag and pulled out three small, crinkled paper receipts from the convenience store down the street. He flattened them out on the wooden table with the palm of his hand.
"What is that?" Mali asked, looking at the trash on the table.
"This is our term inventory," Krit declared, pulling a red ballpoint pen from behind his ear. "We're taking stock of senior year before exams ruin our lives."
He scribbled on the first receipt:
Phuwin: Heart broken (1), Frog discarded (1), Cried over fast food (4 times), Currently functional (80%).
"I didn't cry four times," Phuwin protested, reaching to snatch the receipt.
Krit dodged his hand easily, moving to the second receipt:
Mali: Dad's silver car evaded (1), Chiang Mai submitted (1), Highlighters owned (47), Chance of becoming a terrifying architect (100%).
Mali stared at the receipt, her mouth twitching slightly. "That's not an inventory."
"It's official documentation," Krit insisted, tapping the red pen against the third receipt. He paused for a moment, looking at the blank thermal paper, before writing:
Krit: Physics understood (0%), Friends kept from falling apart (100%).
The library went quiet for a second, save for the rattling air conditioner in the corner.
Phuwin looked at the three tiny, cheap receipts resting between their heavy textbooks. They were just scraps of paper that would fade to white in a month, but sitting there under the dim fluorescent light, they felt like trophies.
"You forgot something on yours," Phuwin said softly.
He took the red pen from Krit's hand and wrote beneath Krit's line:
Five-baht coins invested in taxi blockade: 1.
Krit looked down at the addition, a slow, genuine smile spreading across his face—not his usual loud, goofy grin, but something quiet and warm.
Mali reached across the table, took the three receipts, folded them neatly into a small triangle, and slid them into the clear plastic cover of her notebook, right next to her Chiang Mai calendar.
"Alright," Mali said, her voice turning crisp as she picked up her mechanical pencil again. "Inventory over. Page 143, Krit. If the train leaves at sixty kilometers per hour, you have ten minutes to solve it before I throw your pencil out the window."
"Yes, boss," Krit muttered, but he didn't put his head back down on the table.
Phuwin leaned back against his wooden chair, watching the grey rain wash down the high library windows. Senior year was moving fast, but for now, inside the hum of the old air conditioner, the clock wasn't rushing them.