Lucille Ernella, a medical specialist, arrives from Central to work on the R&D division. She is placed under Escha and Logy's tutelage, though she proves to be quite capable compared to her peers. During an assignment in town, Lucille purchases a rare toy from Reyfer, despite its unusually high price. She also strikes up a friendship with R&D's homunculi. Later, the R&D division is assigned to prepare medicine to prevent an epidemic, and Lucille volunteers to do the task. However, she declines any assistance from the other members and does the work on her own, distancing herself from everyone else. However, labor affects her health and she is unable to make any progress...