In SYNDUALITY Echo of Ada, humanity moved back to the surface when Amasia was suddenly destroyed. You will play as a Drifter piloting a Coffin, an armed vehicle designed to ensure survival in the dangerous terrestrial environment. After a first investigation team disappears, you and your Magus, an AI companion, will be sent to the remains of Amasia to find the missing team and uncover the role of another Drifter, Alba, and their Magus, Ada, in the collapse of the city.