A ninja penguin exists to make you smile, not to earn your tears. The joke is simple: a tiny bird in a mask doing ninja things that don't matter at all, and somehow that's enough. Ninpen Manmaru knows exactly what it is, 30 episodes of pure comfort, the kind of show you turn on when you need the world to be small and funny for a while. There's no plot waiting to devastate you. Just a penguin, some gags, and the understanding that sometimes the best anime is the one that asks nothing of you except to laugh.
Manmaru is a penguin who enrolls at the ninja school in Nenga, where fox and raccoon pupils learn the craft of assassination from a bear who serves as their master. He soon finds himself pulled into a local feud that pits the Nenga school against two rival clans, the monkeys of Koga and the dogs of Iga. On top of that, he must resist the lure of the Dobe, a band of students who dropped out of Nenga. The show is a comedy built around its cast of animal ninjas and their squabbles, running for 30 episodes.