The 76-game veteran, who has played nine Tests for the All Blacks and who shared New Zealand Under 20's world championship success in 2017, has had an injury-plagued career but has still managed to score 26 tries for the side during a golden era of Crusaders success.
Ennor said his contract extension was an easy decision to make, having completed 10 years living in Christchurch.
"I moved down here when I was 18, straight out of school. I've done all my growing as a man here; this is home for me now.
"I love turning up to Rugby Park every day and going to work."
He said older people talked about time going quickly and to enjoy it while it happened. And now he has completed eight seasons with the Crusaders.
"It does go quickly because it's so enjoyable.
"I came down for the Academy first. It was pretty intimidating; I didn't know anyone down here. It was a decision to come down here for the city, the university and the rugby. I wasn't signed until I was 19.
However, he had also been through tough times with them.
The 2011 earthquakes happened before he arrived. He was still at school at St Kentigern College in Auckland and recalled his mother picking him up after school and telling him to keep quiet because she was listening to the radio and all the earthquake coverage when it happened.
He moved south in 2015 and made his provincial debut with Canterbury in 2017 and became a Crusader in 2018.
"Being able to come down here and see first-hand how the city has fought its way back to life and now they're the shining light of New Zealand, it's a pretty cool place to be part of.
"To be part of a team that is so looked up to in the region is awesome."
Ennor said it was a big pull to leave Auckland, but at the same time, the red and blacks were a successful franchise, and that was why he made the move south.
"We've had a lot of success and that's been awesome, but it's been the little wins along the way. They've been the most enjoyable. It's a very welcoming city and environment and it's an easy change to make."
He enjoyed the competition for starting places in the side.
"It comes with a lot of emotions and a lot of memories, from being the young guy wanting to have the jersey every week to being able to start. It's always been a challenge; there's always been competition in the jersey for your positions, but you're playing for each other.
"But to be the ones to put on the jersey every week and go out there and play the big games and make the big plays, it's the best thing in the world."