Isabella panickedly asks 'phineas what do we do how do we beat these guys?'

Phineas answers 'well fawful i just need to hit as hard as I can, and monokuma you need only have enough hope to overpower his despair but with count bleck... there's only 3 of us but to break his barrier...'

then he tells her 'Isabella go! get your friend Katie and hurry!'

Isabella confused asks why do we need her?'

phineas answers 'it's part of the prophecy that defeats count bleck it states and I quote' "4 heroes unite their hope shines forth light to shatter the walls of blight.'

so after breaking blecks barrier, pummeling fawful to a pulp and shattering monokuma with their hope, they force bleck to flee and everyone gets what they want including kazuichi getting with his crush princess Sonia nevermind the end