After a few hours, Damian suddenly jumped up after regaining consciousness.
While he was unconscious, Utsusu absorbed energy into Damian's body as he attempted to recover his energy and if it wasn't for that, Damian could have been severely affected by the rapid siphoning of his energy.
[What happened] asked Damian as he felt extremely sluggish and tired.
{I am not sure, but when you streamed your changeable energy into the skill book, it suddenly began sucking in your energy like a leech and your body lost conscious from the shock and exhaustion of energy} explained Utsusu as what had happened returned to Damian's mind.
Looking over to the black skill book, it looked exactly the same as it did before, but Damian felt a slight attraction towards it as if his body was longing to hold it.
But despite that attraction, Damian was wary to touch it incase in syphoned his energy again and used his bed covers to open the book.