But he can't expect any help from brother Caleb with his homework on Fremantle, with the two Serong's to be pitted against each other in a preliminary final at the SCG.
There's every chance the two brothers will kick off Friday's clash from the centre square after player suspensions meant a move to the Swans engine room for the younger Serong.
Main ball-winners Isaac Heeney and Chad Warner are among five Sydney players serving club-imposed suspensions.
Nick Blakey, James Jordon and Riley Bice are the other Swans who won't feature again this season.
Jai had already been transformed into a winger this year after spending his first four seasons at Hawthorn as a key defender.
The 23-year-old has taken on the bulk of the inside midfield work with superstar Errol Gulden and tackle machine James Rowbottom.
Working on his new craft, Serong said he sometimes swapped notes with Dockers star Caleb throughout the season.
"Both being AFL footballers, we understand a bit more than people who aren't in the system," Serong told AAP.
"It's nice to have someone that close that you can sort of chat to about things.
"But it's not crazy (with the note-swapping). We're at different football clubs, clubs do it differently, so a little bit, but not too crazy."
Jai proved his mettle in the club's gutsy qualifying final win over the Brisbane Lions, finishing with 15 disposals and seven clearances against the unusually lacklustre Lions midfield.
It was his first finals win and second post-season clash, last featuring in the Hawks' 2024 semi-final loss to Port Adelaide.
"I just felt like it was a bit of a chance to go out there and prove myself against the best," Serong said.
"I've been throwing around a fair bit this year. I've done a lot of work on my stoppage work recently, and I'm really excited and enjoying that role.
"I've definitely had tough opposition, but in a final, to perform like that, I was really proud of the group."
Among the many storylines surrounding this Friday's clash is the unavoidable truth of the Serong brothers' premiership dreams.
For one to reach this year's grand final, the other must suffer heartbreak in September.
The younger Serong hasn't let himself think about it too much, resorting to treating the occasion like it's just another match.
"It's a bit weird, to be honest. It's a bit tough," Serong said.
"But we've been in constant dialogue. I sent him a message (before the Geelong semi-final) wishing him all the best.
"It'll be a special event for the family and a really special day for everyone involved, but … I haven't thought about it too much.
"It's just another opponent and we'll be ready and prepared for what they have to offer."
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