Toko helps aid Komaru through The Tragedy. At first, Toko only helped Komaru due to being blackmailed by Nagito Komaeda for Byakuya's life, and was repeatedly annoyed by what she viewed as cowardly or stupid behavior on Komaru's part. However, their friendship grew to the point of sharing beds together and helping each other climb up taller items. Toko constantly encourages Komaru multiple times throughout the game whenever the latter is at the point of giving up.
During an interview with the crew behind Another Episode, Kodaka states that the game is about "the deepening friendship between Komaru and Toko.