This is an anthology movie from Studio Ponoc, consisting of three Anime shorts and having a total run-time of a bit under an hour. The first is "Kanini and Kanino" by Hiromasa Yonebayashi, the second "Life Ain't Gonna Lose" by Yoshiyuki Momose, and the third "Invisible" by Akihiko Yahashita.
"Kanini and Kanino" is about two children who are evidently about 5 mm tall - they live in a freshwater stream with their family, and use crab claw spears to hunt. They have to go on a dangerous journey to find their father. It's pretty, but I really didn't like it. "Life Ain't Gonna Lose" is about a young boy who goes into anaphylaxis when exposed to eggs (also about his mother): it varies between the rather dull minutiae of daily life (his special lunches, he's good at sports) and the terror of his fifth visit to the hospital. Not a particularly enjoyable ride. The final one ("Invisible") is perhaps the weirdest: it's about an office worker who has become invisible, and the problems this causes him. And a final act of bravery that we hope will have him turning a corner. This one was ... okay.