Demonic Symbiosis

In a world where the forces of Heaven (Paradisio) and Hell (Inferno) collide with the world of Earth, humanity still tries to live their day-to-day lives while still trying to survive the secret war between Demons and Angels.

You are a normal human living their life on Earth, trying to survive until you find a relic called an "Akudama" and you put it on only to be possessed by the soul of a very powerful demon and you gain the powers/skills of said demon.

You inherit some of this creature's traits, not just their physical traits, you also inherit some of their personality traits, including likes/dislikes, favorite food or music, and even catchphrases (In this world, all demons have a catchphrase that they say, just like the characters in animal crossing)

What does the Akudama look like (and what do you look like when you put it on.)

Who is the demon that you fused with? (Personality, Interests, Hates, etc.)

What is you Catchphrase? (It can only be one word.)