Old foes thought long gone, have been exposed as the mastermind behind the plans to sink the Catastrophe is taking Yugiri.  This new information re-ignites the fire in Kyosuke as he shakes off death to get his revenge.
Your assessment is naïve.
Tu cálculo de la situación es muy ingenuo.
Tus cálculos son demasiado ingenuos.
Você está sendo ingênuo 
demais com essa situação.