Usagi Sakka!

While on her way home, the protagonist heard a crying baby. Following the sound, she started walking faster until she found a boy clutching a rabbit plushie. She couldn't possibly leave him out there, so she decided to bring him home with her. When she took off the hood he was wearing, she noticed his rabbit ears! Better yet, his plushie started moving and talking! Soon after that, she learned of the other world the two came from, and that to go back, the boy has to become an established writer. And so, they ask for her help... [Translated from Freem!]