After you have completed the game, when you go to the Thrifty Megamart in Royal Avenue, you can speak to this Veteran in the store and he will ask for your help. 30 years ago, he idolised and always tried to beat a collection of trainers who trained Eevee evolutions and as a favour to him, since he cannot do it himself due to life circumstances as he has a wife, a child and a mortgage so he requests that you go across Alola and battle the various Eevee Evolution trainers, giving you a vague location on where to find them.

Location: Route 1 Trainer School

Vaporeon User, Polly, was known as the wild whirlpool of Alola. Over the years, she became a teacher and so can be found in Route 1's Trainer School in Melemele Island.

Vaporeon User Polly	Vaporeon
Battle Type Items	Level 55
	Attacks: Haze Muddy Water Last Resort Hydro Pump
	Hold Item: No Item

Location: Malie City

Jolteon User, Jane is the next trainer with a lot of history behind her. She was said to be a Lass who was tyrant in battle. He says she can be found somewhere on Ula'ula Island, specifically found in the Malie City Community Center.

Jolteon User Jane	Jolteon
Battle Type Items	Level 55
	Attacks: Thunder Wave Discharge Last Resort Thunder
	Hold Item: No Item

Location: Heahea City Tidal Song Hotel

The Flareon User, Chad was known as the fiery magician and was said to have a hot temper. Kagetora says that he used to always stay in the Tidal Song Hotel and says that may be the case.

Flareon User Chad	Flareon
Battle Type Items	Level 55
	Attacks: Smog Lava Plume Last Resort Flare Blitz
	Hold Item: No Item

Location: Blush Mountain

The Espeon User, Ishaan was said to work at the Geothermal Power Plant where he still is.

Espeon User Ishaan	Espeon
Battle Type Items	Level 55
	Attacks: Morning Sun Psychic Last Resort Power Swap
	Hold Item: No Item

Location: Hau'oli Cemetery

The Umbreon User Braiden was said to have once died and come back to life and due to this everyone was afraid of him. It was said that he held a ceremony in the Hau'oli City Cemetery every night and suggests that it may be the place to find him.

Umbreon User Braiden	Umbreon
Battle Type Items	Level 55
	Attacks: Moonlight Mean Look Last Resort Guard Swap
	Hold Item: No Item

Location: Hano Beach

The Leafeon User Linnea was once a world famous model with powerful Grass-type Pokémon and her Leafeon could revive dead trees. He mentions that she used to stay at the Hano Grand Resort between gigs. When defeated, she mentinos she uses all money and medicine in order to keep her looks.

Leafeon User Linnea	Leafeon
Battle Type Items	Level 55
	Attacks: Synthesis Sunny Day Last Resort Leaf Blade
	Hold Item: No Item

Location: Iki Town

The Glaceon User Rea was once said to mercilessly pursue her opponents and that time froze around her Glaceon. He mentions that she was from. Defeat her and she mentions how the only thing in life that matters to her is spending time with her grandson.

Glaceon User Rea	Glaceon
Battle Type Items	Level 55
	Attacks: Mirror Coat Hail Last Resort Blizzard
	Hold Item: No Item

Location: Seafolk Village

The Sylveon User, Sakura was said to have been adored by Fairy-type Pokémon and that she was a descendant of nomadic sea folk. When you get there, you'll be unable to find her but will find a child who will tell you that she is Sakura's granddaughter and that Sakura unfortunately passed the previous year, but she will happily battle you.

Sylveon User Kira	Sylveon
Battle Type Items	Level 54
	Attacks: Light Screen Moonblast Last Resort Psych Up
	Hold Item: No Item

Location: Royal Avenue

After defeating all 8 trainers, return to Royal Avenue and speak to Kagetora and he will challenge you to a battle to finish up. If you defeat him, he will give you the Eevium Z Z-Crystal.

Eevee User Kagetora	Eevee
Battle Type Items	Level 57
	Attacks: Baton Pass Double-Edge Last Resort Trump Card
	Hold Item: No Item