Ia ne tvoia mama [Otto and Pio]

Otto the squirrel is perfectly content living by himself in his treehouse in the forest, when a small creature arrives on his doorstep. Otto invites the curious little Pio in, but soon Pio eats all the hazelnuts, takes up the entire bed, and just gets bigger and bigger! Frustrated at first, Otto comes to realize that his home is much happier with his new friend.