Lag Seeing's quest to recover Gauche's heart continues. After finding him and being attacked in return, he wakes up at the Bee Hive just to find that he has lost Gauche again. Lag must become stronger and a better Letter Bee in order to be ready to take Gauche back next time he finds him. Along with his loyal dingo and friend Niche he decides to make dream come true and bring happiness back to Sylvette, Gauche's younger sister and Aria.
Meanwhile, the organisation Reverse that Gauche (now known as Noir) is now affliated with accelerate their operations to take down the government of the Amberground.