Eifinn Rein

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Eifinn Rein
Personal details





Political and military information


Unified Earth Government (civilian)


"Hey. I want to start, get this, a Master Chief-themed restaurant. I could have a burger called "the Master Beef" and a "Spartan Shake". I was just calling to ask ya, do you what Master Chief's favorite food is? I want to put it on a special menu. People would eat that up."
— Rein's audio email to Giraud, sent 2558.[1]

Eifinn Rein was a human who listened to Benjamin Giraud's Hunt the Truth audio journal in 2558. After Giraud's entries revealed long-hidden truths about the Master Chief's backstory, Rein ignored any of the dark implications and sent Giraud an audio email asking for more personal information about the Spartan, such as what his favorite food was. He planned to start a restaurant with a Master Chief theme, with fast food items named after him.[2]


  • Eifinn Rein is voiced by Baker Legate of the indie rock project "Friends for Sale".[3]
  • In real life, an advertisement for the instant ramen brand Maruchan featured a picture of John-117 captioned "Master Beef".[4]

List of appearances[edit]