the real way to get jaria is
Konohamuru's codes
Successfully complete the game. Then, go to the top of the academy (the left branch). Talk to Konohamuru to get get a menu with three options. Select the "Summon Sheet" option to enter the following codes. ***ume the touch screen is divided into a 4x3 grid, numbered as follows (instead of using the "Summoning Sheet" from Shonen Jump magazine).

[1] [2] [3] [4]
[5] [6] [7] [8]
[9] [10] [11] [12]
Then, quickly tap the indicated grid area. The numbers "1" through "4" will appear on the top screen to indicate the first through fourth numbers have been detected; this is not the "grid" number, but just to confirm that your tap has been detected.

Play as Jiraiya: Tap grid areas 11, 3, 1, 6
Fourth Hokage's sword: Tap grid areas 4, 7, 11, 5
Fuji Fan weapon: Tap grid areas 8, 11, 2, 5
Rasengan jutsu: Tap grid areas 9, 2, 12, 7
Rajin's sword: Tap grid areas 7, 6, 5, 11

it takes a couple of trys