Debuff Master

I was pushed to the edge of a cliff with nothing but despair waiting for me.“I have been watching you for a long time.”The Level 999 Hidden NPC Deus![Do you wish to become the disciple of the Hidden NPC, Deus?][YES!]That’s how I became a Hidden NPC’s disciple!“Kill them in one blow. It won't look cool if you have to hit them twice, so it has to be in a single blow.”I was reborn as a being who killed my enemies in a single blow…Bring it on!One shot is all I need!I am the Debuff Master.