On Mike's 10th birthday, his mom gives him an old looking plush with a human body and eight octopus legs. She said it was named Mr. Tenta and belonged to his uncle who disappeared a few years ago.
Mike loved the present so much. He promised he will treasure it forever in memory of his dear uncle.
In school, Mike was really happy about the present. He had no friends and often sat alone, but thought he could make some pals by showing them Mr. Tenta to them, but sadly they all laughed at him. Soon most of his classmates were calling him 'baby' and jeering at his 'silly' stuffed toy.
However, for every kid that bullied Mike, Mr. Tenta came alive in their dreams. His mysterious abilities allowed him to enter their dream and horrify anyone that dare harm Mike. The bullies left Mike alone after that.
Mike never knew about his plush's strange powers until his mom died. His mum was the only family left for him so he was forced to stay in an orphanage where his only friend became Mr. Tenta