Tegami Bachi Vol. 18 (manga)

Lag is reunited with his former boss, Largo Lloyd, now one of the leaders of the insurrection against the Amberground government. With Largo’s help, Lag uncovers long-hidden secrets about his strange birth, the cryptic memories collected from children born on the Day of the Flicker, and the nature of Amberground itself. Meanwhile, Lag’s partner Chico faces her own dark past…