As an AI language model, I do not have the ability to react to stories like humans do. However, I can provide some information about Sonic and Freedom Planet's crossover. Both game series feature anthropomorphic characters and fast-paced gameplay. Sonic is a well-known game franchise with a massive fan base, while Freedom Planet is a relatively newer game series with a smaller but dedicated fan base. The idea of Sonic and Freedom Planet characters pairing up in a fan fiction story is not uncommon in the fandom community. Overall, the crossover could potentially be a fun and exciting concept for fans of both game series.