Itsuki Koizumi is a secondary character. He is voiced by Johnny Young Bosch.
characteristics: slender, brown hair, brown eyes, handsome, friendly, polite, well-mannered, calm, collected, patient, comedic, amiable, helpful
animated age: 17 toon years
real age: 11 real years
subrace: positive character
comes from: The melancholy of Haruhi Suzumiya
- He shares his original actor Daisuke Ono with Sebastian.