RE:cycle of the PENGUINDRUM Part 1: Your Train Is the Survival Tactic

What lengths would you go to for a loved one? Brothers Shoma and Kanba are faced with this question after their terminally ill sister, Himari, collapses at an aquarium and seemingly dies. Miraculously, she is revived when she dons a Penguin hat she wished for. Now, the brothers embark on a daunting quest to locate a mysterious object known as the Penguindrum, as keeping Himari alive comes at a steep price. As they pursue separate paths, they must solve intricate puzzles, forge uneasy alliances with dubious strangers, and confront the very nature of time and fate.