Prome has taken over the popular Leopop group Lion Legends as the Principal Lion Head and big brother. Taking his new role very seriously, he decides to make a pact with his loyal lion partner Mercury to ban dating and concentrate on their careers. But their plans go awry when both meet two curious girls with strong personalities. Meanwhile, the Legends find themselves under attack. First it was cyberbullying, then a garbage bomb and an almost fatal food poisoning. Why is this anti-fan targeting Prome and Mercury?