Naruto: I Got a Critical Hit and Overthrew the Ninja World!

When the wind of Konoha passes over the Hokage Rock, a name at the end of the crane is being engraved on the legendary stone tablet of the ninja world - Hoshino, the civilian boy who was once laughed at as "can't even shoot a giant fireball", is now standing in the Valley of the End, tearing apart time and space with a palm. He is not an Uchiha and does not have Sharingan; nor is he a Uzumaki and has no sealing power in his body. But he has a system, and it's a critical system! [Training Critical Strike] was triggered as soon as he traveled through time, and he mastered C-level ninjutsu in seconds, at the cost of coughing up blood for three days; he almost blew himself up when he used his own water and wind escape for the first time; in a chuunin exam, he not only broke through the root of the shady plot, but also instigated rebellion against the Akatsuki organization, forced Sasuke to cry, and made Naruto call him "big brother"!