Carried off to Grainelier Headquarters on suspicion of being a harmful seed carrier, Luca finds himself at the mercy of Special Researcher Nicolas. But Nicolas and his ilk are not what they seem, and in an unexpected turn of events, Luca ends up posing as a fellow Institute researcher in order to fly under the radar...as well as sharing rooms with Nicolas! Meanwhile, Abel, driven to rescue his childhood friend, takes up with anti-Grainelier group Insecte. But when a certain incident lands him in a life-and-death situation, Abel will need to focus on saving his own skin first!