Complex sentence: Hojo claims that he really did not have any inspiration other than having to finish a deadline, and that he wrote down a few things, he thought about a few things, and one day the ideas just came to him, out of thin air.
Split into simpler sentences: Hojo claims that he really did not have any inspiration for these works other than having to meet a deadline. He says he wrote down a few things, he thought about a few things, and one day the ideas just came to him, out of thin air.