Potpourri of Memories is the 21st overall episode of Tegami Bachi
Lag, Zazie, Connor and their dingos pay a visit to a new relaxation lounge that Dr. Thunderland helped set up. Inside, they are greeted by the lounge's caretaker, Mana Jones, who tells Lag how Gauche and the doctor helped her in her potpourri research.
One night, however, Mana fell asleep, and a fire was caused, which caused something to fall and left her blind. Thunderland learns from the Bioscience Advisory Panel that she voluntarily resigned after the incident. In frustration, he threatens to have her dissected. Gauche learns of the doctor's outburst and discovers that Thunderland is aware of Mana's potential and concerned about her future.