gravity falls reacts to multiverse

basically I will make a semi well written story of gravity falls cast reacting with a watcher other universes galaxy's or multiverse like *reverse falls *naruto *x_men *bleach *fairy tail *Percy jackson this is not the direct order also there will be a few more after that and let me know of any additions you want in this and I will make it so if they are good or serve a purpose. it will probably be like some original parts and then one or two au's of that franchise especially on the Percy Jackson book I won't spoil it but I'm gonna add an entire book to mine with reactions.