C1691 You Don't Understand What I Want

On the second floor of the Longteng Training Base training camp.

In the training room number 11, which was located in the deepest room, the room had been quiet for 24 hours, from night time to dawn to night again.

Low dragon roars could be heard one after another.

At first, this voice was very soft, almost inaudible.

Many researchers had toiled for a day and a night