I have literally NEVER played Pokémon Masters EX. Would you recommend it?

It's never been revealed.

The main story gives you a ton of gems! Do that! You're already 1/3 the way to guaranteeing getting him!

As for how I'm doing... because of how many Sync Pairs the game has been giving lately, I have 5 I can't get to level 140 due to a lack of Cap unlock items (and I can't use stamina on the training area, because I need to do the new events and replaying training areas doesn't give gems). I have 326 Sync Pairs according to the adventure log (maybe more depending on what it counts as an individual Sync Pair), and all but those recent 5 are at Lv. 140 and above (65 pairs at 6✭EX. Two of those are Liza and Tate even though I've never used them and there's 0 benefits to upgrading them because they've appeared so much while scouting that I'm pretty sure the amount of 3✭ power ups they've given me, if put together and given enough time to trade for 4 and 5✭ power ups and Champion spirits, is equal to the amount of 3+4+5✭ power ups and Champion spirits I had to use to get them to 6✭EX). 1056 days logged in despite my account being old enough to have Jessie and James (I take a lot of breaks). 2,800 gems left thanks to my urge to gamble, and I'm going to start saving them just in case my favourite character (I'm sure it's very hard to guess from my Masters profile) gets a new outfit or anything soon (I know it's unlikely, but unlikely and impossible aren't synonyms!). I don't care about any of the new OP characters and I'm completely fine with missing them. I think that's it.

Also, thanks for asking. I was kind of having a really bad day, but I immediately smiled wide and couldn't stop myself from doing so when I saw that.

(Is that answer genuine)

OK. Open my profile. Look at basically anything in it.