Board Thread:Theories and Speculation/@comment-2165692-20170426120148/@comment-25632268-20170427195316

I have a feeling that this creature wasn't exactly summoned by Boruto, it just used a rift in time-space created by summoning technique to break through. It is not likely Academy could have summoning scroll for something like this, so it wasn't its summoning contract scroll that Boruto has.