The fourth season special animated short story consists of 6 episodes, each lasting 5 minutes. BD& amp; DVD Volume Count//Release Date//Inclusion of Special Japanese Titles//Chinese Titles 1//September 30, 2016//Primary School Students Achieve ○ Practice//Primary School Students Achieve ○ Practice 2/October 2, 2016
The fourth season special animated short story consists of 6 episodes, each lasting 5 minutes. BD& amp; DVD Volume Count//Release Date//Inclusion of Special Japanese Titles//Chinese Titles 1//September 30, 2016//Primary School Students Achieve ○ Practice//Primary School Students Achieve ○ Practice 2/October 2, 2016