When Ren Suo woke up, Dong Chengling had already gone back to sleep. The room was silent, bathed in a dim, warm light that sparked a desire to snooze a bit longer.
The Didra people had a curious kind of alarm clock, which made no sound or vibration, but instead induced dreams. Just before fully waking, Ren Suo dreamt that his mother was pulling his blankets off to hurry him out of bed. He snapped awake then looked down to see it was exactly the time he had set.
Too tired the day before, he had casually set the alarm using his Identity Bracelet without understanding its design. Now, Ren Suo accessed Sony's memory and discovered that the bracelet was equipped with a small slice of Great Lord Valmina's "Dream Zen Tape": in layman's terms, a tape that induces active dreaming and influences the content of dreams to wake someone up naturally.
Sony's previous default settings were configured to influence the range of 'family,' which is why Ren Suo would have dreams about his parents.
