Synopsis

In return for her life, the medic had healed Shinnosuke. Now, he and Heart, drawing on their final reserves of strength, turned their efforts to dismantling Sigma. With Sigma vanquished, Heart issued one last challenge to Shinnosuke, a final reckoning to settle their long-standing rivalry. But Shinnosuke, in a surprising turn, attempted to dissuade him, urging instead for a path of coexistence with humanity.