Carl and Milo watched as their source beasts were completely suppressed by Big Mouth, and they were extremely anxious.
Big Mouth's one slash could heavily injure the two source beasts, but the attacks of the two source beasts could not injure Big Mouth.
As time went on, the injuries on the two source beasts increased.
Big Mouth fought while looking for opportunities.
As time went on, the two beasts would have flaws.
The Thunder Ape was accidentally caught by Big Mouth when it moved, and its head was removed with a slash.
After the Thunder Ape died, Milo, who had a contract with the Thunder Ape, fainted due to the backlash.
Carl was the only one left on the field.
Carl was no longer as relaxed as before. He could only look at Lugh bitterly.
However, other than the Modern Brothers, there were also five level 15 source beast master servants.