When Hanako sees Olivia wandering around the classroom with her face glued to her smartphone, she assumes she’s playing that popular monster-collecting game, but it turns out that she’s playing an unfamiliar game called Bactéri GO. Olivia explains that the objective of the game is to collect the many kinds of bacteria that populate the area, and that it was developed in her parents’ country. She describes the game in detail to Hanako, but…