Volume 10 Bonus Report

Trivia

 * The title of this chapter was derived from a saying "親の心子知らず" (Oya no kokoro ko shirazu), referring to how children cannot fully appreciate the extent their parents care and are protective about them. The chapter title replaces "child" with "friend", and modifies "parents' heart" to "parental heart".
 * The events in this chapter took place on a day after (Report 129) and before.