He went to Keebra Park State High in Brisbane, a known rugby league school, and would ride the train for more than an hour each day to train towards his NRL dream.
Then when he was 17, Seve received shocking news.
“I was diagnosed with testicular cancer,” Seve recalls.
“I had to go through chemotherapy and an operation. Four rounds of chemotherapy. That went on for six months or so and I had to just sit and watch my friends play footy.”
While it was an ordeal that would floor many, Seve is the son of a Samoan boxer so he doesn’t go down easy. When he receive the all clear he soon went back to work, not only playing for the school side but making the Australian Schoolboys team.
“Every game and training session … be grateful for being out there and not sitting on the sideline,” Seve said.
“Every game now, every training session I just enjoy it. You don’t know when you could stop playing.”
That representative selection resulted in Wests Tigers offering him a two-year deal to move to Sydney in 2014.
In his first season, Seve’s father Vaili was also diagnosed with cancer.
He was in his 60s and for a time the family kept Marion from finding out as they wanted him to keep training in Sydney.
“I found out two weeks or three weeks before he passed,” Seve said.
“I flew straight home and went to the hospital. I spent time with him and my family then he sadly passed.
“He had cancer. I can’t remember what cancer it was but he had lost a fair bit of of weight. It was hard for me and my family.
“Me and the family took my old man, his wish was to be taken back to Samoa where he is from and be buried in his tomb.
“I flew straight back to Sydney after that and it wasn’t long after that I left. A couple of months. I just felt I needed to be closer to family.”
Seve and his manager were able to arrange for the Tigers to release him and sign with the Broncos.
That is where Seve has spent the past few seasons but he admits that a lack of drive left him languishing in the Queensland Cup.
“I got too comfortable being around family and I got to laid-back,” Seve said.
“I wasn’t playing my best footy.”
Last year Seve’s agent suggested another club switch. Melbourne was interested but Seve had reservations.
He has six brothers and sisters who have three nephews and three nieces. His eyes light up when he talks about them.
“I love them,” Seve said. “They bring the fun out even when you have had a bad day.”
But the more he thought about it, the more the move made sense, and he arrived in Melbourne mid-season.
“Honestly I was nervous and wasn’t too sure I wanted to move down here,” Seve said.
“I knew if I moved down here I would have to take everything to the next level and focus on footy.
“But I knew it was a good opportunity, and it’s the best move I’ve made.
“Down here is totally different. Up there you didn’t have to do many little things. Like here you have to take a book and a pen into meetings. We never had to do that.”
The Storm have two outstanding centres in Curtis Scott and Will Chambers. Both could be State of Origin players this season.
But Seve has made an impression on his coach. The Storm rarely select a third centre but Craig Bellamy made an exception.
They flew his mum and brother down to Canberra from Ipswich and put them up in a hotel so they could watch his debut.
“With the way he has been playing he basically forced his way into the side,” Bellamy said after the game.
“We are proud of him tonight and I’m sure his family is too.”
Now Seve has a taste the NRL, he wants more – starting with retaining his place for Saturday night’s clash with Penrith Panthers in Bathurst.
“I’ve only stuck my foot in the door,” Seve said.
“My whole mindset is to train, impress the coaches and get more game time. I only played six minutes but I was real proud of that.”
The Storm play Penrith Panthers at Bathurst on Saturday night at 7.30pm.
Roy Ward is a Sports writer for The Age.