Blood Revolution Booster.

Immediately he grabbed the suit case from the professor, both he and the professor showed and expression of surprise.

David – Why the hell is this stuff heavy? Had to use 50 percent of my body's strength to hold it.

The professor – Is it me or was that suitcase supposed to be heavy? He even had to activate his gene subtly to hold the suitcase without sweating. He glanced suspiciously at David but smiled as he said some words of congratulations to David before he allowed him to leave back into the crowds.

When David had gotten back to his place, he dropped the suitcase on the ground with a thump as he wiped away the sweat off his forehead the package was that heavy.

After a few words of caution and advice, the congregation was finally dispersed.