Board Thread:Theories and Speculation/@comment-36300243-20180723092044/@comment-36342497-20180807060130

Well there are a couple of points that make it possible for Kashin to be Jiraiya

1. They share the white hair and red markings

2. Both use Fire Release

3. They share the Toad as a summoning

3. Kashin seems really interested in Konoha and furthermore Boruto

4. Ao who was believed dead and a hero made a returned for the reader in this arc as a villan, that could be a paralel to Jiraiya.