This story is about Mick, a sleeping chironomid. Insects are taken up into space for use in experiments by humans. An epic space adventure of Mick and his friends of their journey back home to Earth. The development plans and experiments are aborted by humans for no known reason, the organisms are left behind in the space station with limited resources. Going over hurdles and fighting through challenges, together, they travel across planets and gain new comrades, heading for Earth. As their journey progresses, the mystery behind the human’s abandonment unravels… (Source: Crunchyroll)

Third season of Recorder to Randoseru.

Second season.

Miyagawa Atsushi is an 11-year-old boy who is 180 centimeters tall. Since he has a grown-up looking build but acts his age, he has always been running into troubles. On the other hand, his 17-year-old elder sister Atsumi is only 137 centimeters tall. Even though she has a childish looking build, Atsumi takes good care of Atsushi.