Mattie, a shy fifth grader, wants to hide out at her new school by acting as apprentice to her Uncle Potluck, the custodian, but her plan falls apart when she summons the courage to speak about what matters most and finds a true friend.
Kurosaki searches for the person who is trying to resurrect the virus he created, and wants to see Teru despite promising to leave her alone when he learns she may be in danger.
Kurosaki finally decides to tell Teru the truth about Daisy, but an unsettling character named Akira has other plans for Teru that may affect Teru's relationship with Kurosaki forever.
Fifth-grader Jack finds himself the target of ridicule at school when it becomes known that his father is one of the janitors, and he turns his anger onto his father.