Tasokare Hotel season 1 episode 6
Episode title: Space and Music
A rocket-headed boy and a black cat wander into Tasokare Hotel. The boy chases the cat around, desperate to befriend it, but never catches it. The cat keeps its distance yet stays close, silently watching over him. Just then, a record-headed guest appears and cheers up the boy. As they play, the boy realizes this man is the legendary saxophonist who once inspired Atori to pursue music.
