Sunny had to destroy the Sin of Solace before the seeds of Corruption were planted into his soul. If he managed to destroy the wraith before that happened, the scheme the Mad Prince had concocted to come back to life would be thwarted, and Sunny would get to continue existing.
If he failed, the Mad Prince would return, consuming him in the process.
'That vile bastard…'
The sword wraith laughed as he watched him.
"My, oh my. You're not going to do something terrible to me, are you?"
Sunny glanced at him darkly, then at the beautiful jian in his hand.
Placing the Guiding Light on the water, he wrapped all six of his shadows around him and grabbed the jade blade, using all his inhuman strength in an attempt to break it against his knee.
