This is an 8-day trip pairing flying the 767-400, and I'm flying as First Officer. We leave Houston, fly to Honolulu with a 24 hour layover. Day 2 is HNL-GUM, where we stay in Tumon, Guam. Day 3 flies Guam-Narita-Guam. Day 4 is in Guam. Day 5 is another GUM-NRT turn. Day 6 goes from GUM-HNL, and day 7 leaves HNL, arriving in Houston on day 8.