Penguin's Memory: Shiawase Monogatari

Budding genius Aoyama is only in the 4th grade, but already lives his life like a scientist. When penguins start appearing in his sleepy suburb hundreds of miles from the sea, Aoyama vows to solve the mystery. When he finds the source of the penguins is a woman from his dentist’s office, they team up for an unforgettable summer adventure!

Koichi and his sister Yuki befriend Hanaguro, a swan who has flown to Japan from Siberia. Hanaguro is attacked by a dog, and the cowardly Koichi flees, but that night he has a dream in which he is whisked away to the Kingdom of Snow Prince, where he finds the bravery to help the other swans.

Penguin no Mondai Movie.

After Shijin's concern on the absence of his girlfriend Nagisa, Gamba, Bobo, Gakusha, Ikasama, Shijin, and Yoisho travel to the South Island looking for her, only to find out about a family of Japanese otters, endangered by a wild dog named Black. When Chuta, a badly injured mouse, staggers off a ship in Tokyo Harbor, he bumps into out-of-towners Gamba and Bobo, who are at a party being given by Yoisho, the sailor-mouse. Chuta tells the local mice that he has escaped from Devil's Island, where Norio the evil ermine has crushed the mice with his reign of terror.