Majin Bone Season 1 Episode 33 Being a Family

Shougo's mother, Chie, has been away from home for twlve years, doing cocoon research on the space station. Shougo uses the radio to speak to her for the first time since she left. When he returns to Japan, Shougo wants to let Kengo and Tomoko know that Chie's doing okay, but his plans are frustrated by the fact that he can't tell them about the Cocoon research.