At 02:31, Aum's environmental assessment flagged an inconsistency.
Not significant. Not critical.
A temperature variation in the guest room — 0.4 degrees below the recorded baseline of the previous evening. Marginal by most standards. Within survivable range by any standard.
But inconsistent.
And inconsistency, by the only framework Aum currently had available to him, required investigation.
He assessed the room systematically.
The window seal — intact. No external air infiltration detected. The climate regulation system — functioning within normal parameters. The variation had no visible source. No assignable cause. No logical origin point that his assessment could locate and file and close.
Which meant the variable remained open.
He stood in the center of the guest room for 4.2 minutes running successive assessments that returned successive non-results.
Then — with the same logical sincerity that had governed every decision he had made since landing on this planet — he identified the only available solution:
Relocate to the only other occupied space in the structure.
The temperature baseline in Xu Chen's room had been recorded during the previous evening's assessment — 19.3 degrees. Stable. Consistent. A confirmed data point against which the guest room's variation could be accurately measured.
Environmental assessment required comparison.
Comparison required proximity to the confirmed baseline.
The logic was complete.
Aum picked up the chair from beside the guest room window.
Carried it to Xu Chen's room.
Positioned it at the precise distance from the bed that his assessment required — close enough for accurate environmental reading, not so close as to constitute unnecessary interference with the subject's resting state.
Sat down.
Resumed assessment.
At 03:14 — the temperature variation in the guest room corrected itself without intervention.
Aum noted this.
Did not return to the guest room.
The assessment of the confirmed baseline was already underway.
It would be inefficient to interrupt it.
He remained in the chair.
Observing.
At 06:54 — Xu Chen's breathing pattern changed.
Aum leaned forward slightly to confirm the transition from sleep state to waking.
Xu Chen's eyes opened.
Xu Chen didn't wake up peacefully.
It wasn't noise.
It wasn't movement.
It was something far more specific—
breathing.
Not his own.
Slow. Even. Too measured.
His eyes opened instantly.
Aum was leaning over him.
Not dramatically. Not invading in an obvious way.
But close enough that Xu Chen could feel the faint difference in air between them—like the space itself had thickened.
Xu Chen froze for exactly one second.
Then—
"What the hell—"
He jerked upright, nearly knocking their foreheads together.
Aum adjusted back just enough to avoid contact.
Precise.
"You are awake," Aum said.
Xu Chen stared at him.
"…You think?"
Aum's head tilted slightly, processing tone more than words.
Xu Chen dragged a hand through his hair, exhaling sharply.
"Why are you this close to my face?"
"I was confirming your resting pattern," Aum replied.
"That requires you to hover over me?"
"Yes."
Xu Chen blinked slowly.
Then nodded once.
"Right. Of course. Completely normal behavior."
Aum didn't react.
Xu Chen squinted at him.
"You don't get sarcasm, do you?"
Aum paused.
"…Not reliably."
Xu Chen let out a short laugh despite himself.
"Yeah. I figured."
He swung his legs off the bed, still watching Aum from the corner of his eye.
Up close like that, something felt—
different again.
Not just the proximity.
The air.
It wasn't heavier in a suffocating way.
But there was a faint resistance when he moved his hand through it, like the space around Aum carried a different weight.
Xu Chen frowned slightly.
Then dismissed it.
Probably just lack of sleep.
By the time Xu Chen reached the kitchen, Aum had followed.
Of course he had.
But this time, Xu Chen didn't say anything immediately.
"Oh, by the way what were you doing in my bedroom?"
"There was a temperature variation in the room you asked me to stay", Aum replied in his plain tone.
Xu Chen stepped towards the guest room and tried to identify the issue, ofcourse there was some variation but nothing that might need you to change the room, rather upgrade the room; Xu Chen thought to himself.
Considering Aum's unique behavioural pattern Xu Chen made a decision and spoke it loud. "Alright then, you can stay with me in my room but you will have to take the couch and I will take the bed. Deal?"
Aum tried to analyse the meaning of this for a brief second and nodded his head in confirmation.
Xu Chen now more curious about Aum, decided to test something.
He moved left.
Aum adjusted.
He moved right.
Aum adjusted again.
Xu Chen turned abruptly.
Aum stopped at the exact same moment.
They stared at each other.
"…You're tracking me."
"Yes," Aum said calmly.
Xu Chen crossed his arms.
"Why?"
"You change position frequently," Aum replied. "Maintaining proximity requires adjustment."
Xu Chen stared at him for a second.
Then let out a quiet breath through his nose.
"That's not a normal explanation."
"It is accurate."
Xu Chen rubbed his temple.
"You keep saying things like that as if it helps."
Aum didn't respond.
Xu Chen reached for a glass.
Before he could pick it up, Aum spoke again.
"You move more than necessary."
Xu Chen paused mid-motion.
"…Excuse me?"
Aum gestured lightly toward him.
"Your actions include excess transitions."
Xu Chen slowly turned.
"Are you telling me I walk wrong?"
"I am stating that your movement efficiency is low."
Xu Chen stared.
Then; a laugh slipped out.
"Alright," he said, pointing at him. "You. Walk."
Aum didn't question it.
He stepped forward.
One step.
Clean.
Direct.
No shift in weight, no unnecessary motion.
Xu Chen's smile faded slightly.
That was—
annoyingly precise.
"…Okay," Xu Chen muttered. "That's a little unsettling."
Aum stopped.
"Why?"
"Because people don't move like that," Xu Chen said.
Aum considered it.
"Your movement includes hesitation," he said. "Mine does not."
Xu Chen blinked.
"…You just insulted me very calmly."
"I did not intend insult."
"Yeah, that's the problem."
Later, Xu Chen found himself watching Aum again.
Not because he meant to.
But because ignoring him had become… difficult.
Aum stood near the window.
Same place.
But this time, Xu Chen noticed something else.
The light.
It fell differently on him.
Neither brighter nor dimmer.
Just… steadier.
As if it didn't scatter the same way.
Xu Chen narrowed his eyes slightly.
"Do you feel that?" he asked suddenly.
Aum turned his head.
"What?"
"The air," Xu Chen said, gesturing vaguely. "Does it feel… off to you?"
Aum paused.
Not long.
Just enough.
"It is denser than expected," he said.
Xu Chen froze.
"…Expected?"
Aum looked at him.
And for a brief second—
something shifted, in timing.
"It is within tolerable range," Aum added.
Xu Chen studied him carefully.
That answer didn't feel accidental.
But it also didn't feel like something he could push.
So he let it go, for now.
Evening came quieter than before.
This time, when they sat across from each other—
Xu Chen didn't immediately look away.
Aum's gaze was already on him.
Steady.
Xu Chen held it.
Longer than he had yesterday.
There was something about the way Aum looked at him.
It wasn't a curious or a judgmental look.
But a focused one.
Completely.
Xu Chen's fingers stilled against the table.
That kind of attention was rare and impossible to ignore.
He had known people who were more expressive.
More openly attractive.
But none who made stillness feel this present.
Xu Chen looked away first.
Again.
"…You're doing that thing," he muttered.
"What thing?" Aum asked.
"Looking at me like I'm… something to study."
Aum considered that.
"You are," he said.
Xu Chen huffed out a breath.
"Great. Good to know I've been promoted to research subject."
Aum tilted his head slightly.
"That is not a promotion."
Xu Chen stared at him.
Then laughed.
"Unbelievable."
A moment passed.
Then Aum spoke again.
"You are… inconsistent."
Xu Chen raised a brow.
"Still on that?"
Aum nodded faintly.
"Your physical structure is stable," he continued. "But your responses are not."
Xu Chen leaned back, watching him now.
"That's called being human."
Aum held his gaze.
"I am aware."
The way he said it, felt different.
Almost…
thoughtful.
Silence settled again.
But this time it wasn't neutral.
It held something.
Xu Chen exhaled slowly, glancing at him once more.
"…You're not going anywhere, are you?"
Aum didn't answer immediately.
His gaze didn't shift.
"No."
The same answer as before.
But it didn't feel the same.
Xu Chen looked down briefly then back up.
"…Yeah," he said quietly. "I'm starting to get that."
Outside, the air shifted again.
Inside, something else had.
Distance and space remained the same.
But awareness.
And that was becoming harder to ignore.