Reincarnated into another world as a Parayste with the Plunderer Skill

Alvin, our main protagonist was busily drinking a cup of Latte at a Starbucks Cafe, when a bus then unfortunately came in through the front entrance and struck him. He then later died due to some unnecessary complications, way before the ambulance even arrived. Reincarnated into the world of {Tensei Shitara Slime Datta Ken} not as a Slime, Human, or Goblin, but rather as an ever-evolving Parasitic Worm...