C692 Complementarities

With just one sentence, it caused Chu Chen's heart, which originally had not been in turmoil, to suddenly be in turmoil.

This was like a sudden clap of thunder that exploded within his heart, causing his thoughts to fly into the air. He could not believe it, and he was unable to calm down for a long time.

Up until now, Chu Chen had known that this small box was very ancient