Undercover Wolf: My Target, My Girlfriend
His voice settled in the quiet room, like he was leaving a final opening for the test that had been proposed but not yet decided.
"An initial test only needs a small dose. If the body shows rejection, heart rate will accelerate, temperature will rise, but it won't be immediately fatal. If there's no severe reaction within five minutes, it's a preliminary pass." He closed the box and set it on the table. "You can decide now, or tomorrow. But your line won't wait."