Two men confronted their own past with considerable sacrifice in the first season of B: The Beginning. Keith Flick, a maverick detective, battled his issues and eventually revealed the terrible truths of the Kingdom of Cremona. Koku, the mutant wunderkind, was finally reunited with his most prized childhood memory. Several months have passed since those events, and the entire world appears to have forgotten about the upheaval they wrought. Koku and Yuna strive to live a normal life in peace while Keith returns to the Royal Police to pursue his own inquiry. But, as Koku quickly discovers when his ostensibly dead lab mate Kirisame reappears, the effects of the Jaula Blanca trials are far from done.