The Eighteen Levels of Hell: Lying is Forbidden Here

'In the first Secret Room, the third person broke in with a murder weapon. If he knew that he couldn't physically kill the adult, he wouldn't have chosen to break in with a murder weapon.'

'The adult designing a trap for the third person indicates that the adult knew of the third person's existence.'

'Therefore, the conclusion is...'

'The adult knew he shared the same body with the third person, but the third person didn't know.'

'At the same time, during the 【case】, the consciousness of both the adult and the third person appeared simultaneously.'

'This indicates that during the living time belonging to the third person, the adult's consciousness was also present.'

'Conclusion: If sleep is not considered, the adult's consciousness exists 24 hours a day. But during the time belonging to the adult, the third person's consciousness will fall into a deep sleep.'

Deducing up to here.

Qiu Yinong suddenly widened her eyes. She looked around the endless highway.