Konoha's Digital Summoner

With the game system he developed, he was reincarnated into the Naruto world of Konoha Village. It happened to be the night of the Nine Tails, and he was trapped in the path of the death of his parents. When the Fourth Ninja War began. Do you have nine tailed beasts? Sorry, I, the Thirteen Royal Knights and the Seven Demon King Beasts, are not vegetarians. Do you want the Ten-Tails to destroy the world? Give me the Thirteen Emperor's Cavalry, the Seven Demon King Beasts, and the Five Guardian Beasts, and let's see how resistant the Ten Tails can be. The introduction is weak, please read the text. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.