Penguindrum is a tV series anime that premiered in summer 2011, produced by Brain's Base.

About the production: the story comes from an original script, there are 24 episodes of about 24 minutes and its current status is "finished".

Its main genres are drama, mystery, psychological and supernatural, with themes such as Philosophy, Family Life, Coming of Age and Ensemble Cast.

On AniList, Penguindrum has an average score of 79%, a very good score, and appears on 85,365 users' lists.

Once you make a decision, does the universe conspire to make it happen? Is destiny a matter of chance, a matter of choice or the complex outcome of thousands of warring strands of fate? All twins Kanba and Shoma know is that when their terminally ill sister Himari collapses at the aquarium, her death is somehow temporarily reversed by the penguin hat that she had asked for. It's a provisional resurrection, however, and it comes at a price: to keep Himari alive they need to find the mysterious Penguin Drum. In order to do that, they must first find the links to a complex interlocking chain of riddles that has wrapped around their entire existence, and unravel the knots that tie them to mystifying diary and a baffling string of strangers and semi-acquaintances who all have their own secrets, agendas and "survival strategies." And in order for Himari to live, someone else's chosen destiny will have to change. It's a story of love, fate, life, death... and Penguins! (Source: Sentai Filmworks)

Official synopsis from AniList.