After watching Might Guy and Neji Hyuga's battle through the crystal ball, Hiruzen Sarutobi, Danzo Shimura, Homura Mitokado, and Koharu Utatane in the Hokage's Office fell silent.
The Hokage's Office was shrouded in silent contemplation.
They were not surprised by Might Guy's strength.
Might Guy's ability to become a Jonin who relied purely on taijutsu began with his father, Might Duy.
Might Duy had actually been a Konoha Genin, mainly handling menial labor for employers, helping them find cats, and other Genin missions.
Though he was a Genin, he was a tough man who persisted in singing the praises of "youth" with a hot-blooded soul.
During the Third Shinobi World War, the first generation of Kirigakure's Seven Ninja Swordsmen of the Mist—Jūzō Biwa, Fuguki Suikazan, Jinpachi Munashi, Jinin Akebino, Kushimaru Kuriarare, Raiga Kurosuki, and the others—secretly infiltrated Konoha. They encountered the young Might Guy, Genma Shiranui, and Ebisu, and were toying with the three as they prepared to kill them.
At the critical moment, Might Guy's father, Might Duy, arrived. To protect the three, he faced the Seven Ninja Swordsmen of the Mist with the resolve to die, opening the Eight Gates Formation—the Gate of Death. He directly killed four of the Seven Ninja Swordsmen of the Mist, forcibly turning the seven into the Auspicious Three, leaving only Jūzō Biwa, Fuguki Suikazan, and Raiga Kurosuki to flee in panic.
Only then did the entire Shinobi World see the might of a ninja who specialized purely in taijutsu. Because of this, Might Guy did not have to remain a Genin forever like his father and gained the qualifications to rise to Jonin as a pure taijutsu ninja.
Might Guy blowing up the entire Training Ground Seven looked frightening, but it was not difficult to accept. His father, Might Duy, had long