Niu Yiwei's Martial Soul was a button!
To be more precise, it was a button bomb. His first soul skill was even more interesting, something called Explosion Isolation. It was an extremely strong defensive skill that was able to defend against any shockwave-related attacks. It was even able to completely defend against his own button bomb explosives that he released.
His second Soul Power was basically a button bomb thrown with powerful explosive capabilities; it relied on exhausting his Soul Power.
Niu Yiwei's biggest dream was not to enter Shrek Academy, but to enter the Tang Sect. The Tang Sect, which had ten thousand years of history, had a special technique called the Hidden Weapon Hundred Separation. He yearned to learn the method, as it would greatly improve his own strength. However, it was too difficult to enter the Tang Sect, so Shrek Academy could be considered a shortcut. After all, the two were deeply related.