Gu Shengyin had not expected that something would go wrong so soon.
The system did detect the problem, but being an illusory body relative to everything in this world, it could hardly do anything.
By the time it informed Gu Shengyin, that wisp of black gas had already entered Xi Lili's body.
"Could this black gas be the source of Xi Lili's 'Protagonist's Aura'?" Gu Shengyin speculated.
That night, she cast Concealment Magic on herself and entered Xi Lili's room.
The small figure was nestled into the bedding, seemingly sleeping very sweetly, appearing just like a normal human little girl.
Just as Gu Shengyin was about to step forward and examine her body more closely, Xi Lili, who was sleeping in the bed, suddenly opened her eyes.
That look! It definitely wasn't something a six-year-old child should possess. Gu Shengyin made a judgment immediately.
She watched Xi Lili get out of bed and walk toward a room next to hers.