Amonsun is one the deuteragonists of Exchange Student Zero Saga. He is Hiro's pet and guardian who takes his job seriously.


Ridiculously cute while dormant, Amonsun possesses the ability to morph into a fearsome fighting machine that can take on many forms. As Hiro's loyal pet, he takes his takes his job very seriously.

Powers and Abilities

  • Intangibility (movie only)
  • Transmutation (series only)
  • Flight
  • Laser Vision
  • Cuteness Inducement
  • Supernaturally Dense Tissue
  • Supernatural Intelligence
    • Mystical Martial Arts
    • Mechanical Intuition


  • He has served Hiro for more than 500 Karutan years.
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