The set is comprised of a small selection of tales, with the primary narrative centering around Michihiro's sorrow over his pet dog's demise. However, a peculiar twist emerges when an individual professing to be Michihiro's deceased dog unexpectedly materializes one day. Who could this enigmatic figure be, and how is he privy to every aspect of Michihiro's life? This engaging and endearing story revolves around school life.