Ultraman: Becoming the Mastermind by Creating Battle Tyrant

After transmigrating to the Ultraman universe, Su Yin became Yapool, who had been blown to pieces by the Ace Beam.

With the Digivice that had transmigrated along with him, Su Yin made his way to the world of Tiga.

But he was saddled with Yapool's lingering resentment, which he couldn't shake off.

After arriving in Tiga's world, Su Yin used Yapool's biotech and the Digivice to modify monster remains, digitizing every Super Beast.

In the Ultraman world, Su Yin ran a monster disposal company while using the Ultra Warriors to gather monster materials, producing one Digimon after another.

Years later, the fifty-meter-tall WarGreymon shattered the ground beneath its feet and faced off against Ultraman Ace in the city.