Eevee Day Celebration! (Japanese: イーブイの日記念！ Eevee Day Celebration!) is a type of limited-time event in Pokémon Masters EX in honor of Eevee Day, a holiday established in Japan in 2018 to celebrate Eevee[1].
Eevee Tales
This event was focused on various sync pairs formed between player characters and Eevee's evolutions. Variety scouts ran for the duration of the event that allowed players to recruit these sync pairs.
During this event, players could earn event vouchers from battles that could be redeemed in the shop. All battles could be challenged an unlimited number of times except Daily Extreme Battle 1, which could only be challenged once per day. Extra vouchers were automatically exchanged with coins once the event was finished. Players could battle using sync pairs formed with Eevee or its evolutions to earn bonus vouchers.
This event featured a series of Full-Force Battles against Trainers who use Eevee and its evolutions. Similar to the Legendary Arena, players could use multiple teams with a limited number of total sync pairs, with the opponents' health carrying over between rounds and with previously used pairs unable to be used again until the challenge was reset.
First run
The event first ran from November 21 to December 5, 2022, under the name "Three Eevee Tales". It introduced the sync pairs Lyra & Vaporeon, Lucas & Flareon, and Kris & Jolteon.
The "Triple Feature Variety Scout" gave players an increased chance of recruiting Lyra & Vaporeon, Lucas & Flareon, and Kris & Jolteon for the duration of the event.
In this run, the type of voucher that players could earn was the Normal-themed Event Voucher K. The player could battle using Lucas & Flareon, Kris & Jolteon, or Lyra & Vaporeon to obtain +0.6× bonus vouchers; Leaf & Eevee, Sygna Suit Misty & Vaporeon, or Sygna Suit Erika & Leafeon to obtain +0.4× bonus vouchers; and Karen & Umbreon, Valerie & Sylveon, Scottie/Bettie & Pikachu, or Scottie/Bettie & Torchic to obtain +0.2× bonus vouchers.
Additionally, the music that played during the extreme battles was 
Battle! (Region's Best).
Second run
The event reran from November 21 to December 8, 2023, under the name "Eevee Tales". It introduced the sync pairs Elio & Espeon and Selene & Umbreon. An additional story area was made available after the initial one, which featured these new sync pairs.
The "Double Feature Variety Scout" gave players an increased chance of recruiting Elio & Espeon and Selene & Umbreon for the duration of the event, and the "Triple Feature Variety Scout" gave players an increased chance of recruiting Lyra & Vaporeon, Lucas & Flareon, and Kris & Jolteon for the duration of the event. The "Eevee Day Celebration Tiered Scout", which could only be used with paid Gems, gave players an increased chance of recruiting all five of these pairs.
In this run, the type of voucher that players could earn was the themeless Event Voucher U. The player could battle using Elio & Espeon, Selene & Umbreon, Lucas & Flareon, Kris & Jolteon, or Lyra & Vaporeon to obtain +0.6× bonus vouchers; Elaine & Eevee, Adaman & Leafeon, Irida & Glaceon, Penny & Sylveon, Leaf & Eevee, Sygna Suit Misty & Vaporeon, Sygna Suit Erika & Leafeon, Tina & Flareon, or Rachel & Umbreon to obtain +0.4× bonus vouchers; and Karen & Umbreon, Valerie & Sylveon, Irida & Flareon, Adaman & Vaporeon, Eve & Eevee, Scottie/Bettie & Pikachu, or Scottie/Bettie & Torchic to obtain +0.2× bonus vouchers.
Additionally, the music that played during the extreme battles was changed to a remix of the Pokémon: Let's Go, Pikachu! and Let's Go, Eevee! Trainer battle theme.
Plot
Professor Oak is holding a lecture on Eevee for Trainers who have one as a partner Pokémon. Kris, Lyra, and Lucas attend with their Jolteon, Vaporeon, and Flareon, respectively, to demonstrate some of the ways Eevee can evolve. After the lecture, Professor Oak asks them why they chose to evolve their Eevee the way they did. Lucas and Lyra say that they each evolved their Eevee into the Evolution that matched the type of a teammate they admired, while Kris says that she wanted a fast Pokémon to help her take on other speedy Pokémon she encountered on her journey. Professor Oak then comments that there's always an interesting history behind people and Pokémon.
Elsewhere, the team of Elio and Espeon, the player character and Solgaleo, and Tate and Solrock are battling the team of Selene and Umbreon, Lillie and Lunala, and Liza and Lunatone. Elio's team wins, which Selene hypothesizes could be because they were battling at sunset, so their Pokémon were powered up by the sun. They decide to have another battle when the moon comes out. In the meantime, Lillie asks where Elio and Selene got their Espeon and Umbreon. Selene says that they both met them as Eevee near Paniola Town, and Elio gets nostalgic about the Tauros raised on Paniola Ranch. The sun finally sets, so the teams have another battle, with the Pokémon on Selene's team powered up by the moon.
Area info
Battles
Event missions
Shop
November 21 to December 5, 2022
November 21 to December 8, 2023
| Item given | Item received | Max exchanges | |
|---|---|---|---|
 Event Voucher U ×800 | → |  Move Candy Coin ×1 | 1 |
Event Voucher U ×200 | → |  5★ Scout Ticket ×1 | 4 |
Event Voucher U ×400 | → |  5★ Power-Up ×1 | 1 |
Event Voucher U ×250 | → |  4★ Power-Up ×1 | 3 |
Event Voucher U ×150 | → |  3★ Power-Up ×1 | |
Event Voucher U ×300 | → |  3★ Crunchy Lucky Cookie ×1 | |
Event Voucher U ×300 | → |  3★ Creamy Lucky Cookie ×1 | |
Event Voucher U ×300 | → |  3★ Crispy Lucky Cookie ×1 | |
Event Voucher U ×60 | → |  Lucky Scroll ×1 | 10 |
Event Voucher U ×10 | → |  Evolution Crystal ×3 | 3 |
Event Voucher U ×5 | → |  Evolution Shard ×5 | |
Event Voucher U ×100 | → |  Skill Sphere ×10 | 5 |
Event Voucher U ×50 | → |  Sync Orb ×50 (Elio & Espeon) | 2 |
Event Voucher U ×50 | → | Sync Orb ×50 (Selene & Umbreon) | |
Event Voucher U ×100 | → |  Psychic Codex, Vol. 1 ×10 | 5 |
Event Voucher U ×50 | → |  Psychic Tome, Vol. 1 ×10 | 15 |
Event Voucher U ×100 | → |  Dark Codex, Vol. 1 ×10 | 5 |
Event Voucher U ×50 | → |  Dark Tome, Vol. 1 ×10 | 15 |
Event Voucher U ×100 | → |  Water Codex, Vol. 1 ×10 | 5 |
Event Voucher U ×50 | → |  Water Tome, Vol. 1 ×10 | 15 |
Event Voucher U ×100 | → |  Electric Codex, Vol. 1 ×10 | 5 |
Event Voucher U ×50 | → |  Electric Tome, Vol. 1 ×10 | 15 |
Event Voucher U ×100 | → |  Fire Codex, Vol. 1 ×10 | 5 |
Event Voucher U ×50 | → |  Fire Tome, Vol. 1 ×10 | 15 |
Event Voucher U ×50 | → |  4★ Level-Up Manual ×10 | 3 |
Event Voucher U ×30 | → |  Skip Ticket ×10 | 5 |
Event Voucher U ×750 | → | 3★ Power-Up ×1 | Unlimited |
Event Voucher U ×10 | → |  3★ Level-Up Manual ×3 | |
Event Voucher U ×10 | → |  5-Pack Drink + Set ×30 | |
Event Voucher U ×10 | → |  5-Pack Ultra Drink Set ×40 | |
Event Voucher U ×10 | → |  5-Pack Great Drink Set ×50 | |
Script
- Pokémon Center (event conversation)
| Name | Text |
|---|---|
| Lyra | Vee vee Eevee! ♪ |
| Lyra | It's fascinating that there are so many ways Eevee can evolve. |
| Lucas | I agree. You can get a feel for how mysterious and wondrous these Pokémon are. |
| Kris | It's worth observing! Right? |
- Pokémon Center (event conversation; second run only)
| Name | Text |
|---|---|
| Selene | The sun and the moon! |
| Elio | Both have such mysterious powers. |
| Selene | I wonder how they feel to Eevee? |
- Eevee's Evolution Memories
| Name | Text |
|---|---|
| (City; Professor Oak, Lucas, Lyra, and Kris are standing in front of a crowd) | |
| In the city, Professor Oak held a lecture for Trainers who have Eevee as partner Pokémon. | |
| (The crowd interacts with Kris's Jolteon, Lyra's Vaporeon, and Lucas's Flareon) | |
| Professor Oak | Everyone, get along with your Eevee! |
| (Kris, Lyra, and Lucas wave to the crowd as everyone disperses) | |
| Professor Oak | Thank you all for coming as well! Everyone was happy to see how Eevee evolve. |
| Lucas | Not at all, Professor Oak. I'm glad we could help! |
| Kris | We learned a lot from the lecture, too! |
| Lyra | It seems like Vaporeon and the others are happy to play with everyone, too. |
| Professor Oak | By the way, why did you all want your Eevee to evolve the way they did? |
| Lucas | Well, in my case... When Flareon was an Eevee, it seemed like he admired my Infernape... so I thought Flareon was the best choice for him. |
| Lyra | Same for me! My Eevee was close friends with Marill. She's really helpful when we go on adventures near water. |
| Kris | In my case, I struggled a lot with fast Pokémon when I was traveling around Johto. So I thought if my Eevee became Jolteon, she could be really reliable. Jolteon was happy to do so, too! |
| Professor Oak | Ah! I see, I see! |
| (Lucas and Flareon cheer; Lyra and Vaporeon cheer; Kris and Jolteon cheer) | |
| Professor Oak | Hmm... There's always an interesting history behind people and Pokémon! |
- The Sun and Moon
| Name | Text |
|---|---|
| (Mountain at sunset; Elio and Espeon, the player and Solgaleo, and Tate and Solrock are battling Selene and Umbreon, Lillie and Lunala, and Liza and Lunatone) | |
| Elio | Yeah! Team Sun wins! |
| Lillie | Oh... They were so strong... |
| Selene | I agree... Is it because they gained energy from the sun? |
| (The group watches Solgaleo, Lunala, Solrock, and Lunatone interact) | |
| Selene | Let's battle again when the moon comes out! |
| Elio | Yeah, for sure! |
| Tate | The sun and the moon... |
| Liza | ...Have mysterious powers! |
| Selene | Mysterious powers, huh? |
| Lillie | It reminds of the time Nebby evolved... |
| Elio | Maybe Eevee evolve by receiving mysterious powers from the sun and the moon. |
| Lillie | By the way... Where did you two meet Espeon and Umbreon? |
| Selene | We met them near Paniola Town on Akala Island when they were still Eevee! They evolved while we were taking on the island challenge! |
| (Espeon and Umbreon cry happily) | |
| Elio | Ahhh, Paniola Town... When I close my eyes, it all comes back to me... I can hear the Tauros now... |
| (A Tauros cries out; a group of three Tauros are watching them) | |
| Tate | Tauros? |
| Liza | Why's that? |
| Elio | There's a ranch near Paniola Town that raises a bunch of them. |
| Lillie | Oh! The sun's starting to set! It's almost nighttime! |
| Selene | Ooh! I wonder if the moon will come out! |
| Liza | Selene! Lillie! Let's definitely win this time! |
| Selene | Yeah! |
| Tate | We'll put in our all too, even without the sun's powers! |
| Elio | That's right! Let's show them that we can still shine brightly! |
| (Nighttime; the teams battle again while the Tauros watch) | |
| Selene | Go, Umbreon! |
| (Umbreon, Lunala, and Lunatone deal a heavy blow to the others) | |
Trivia
- The date set for Eevee Day, and therefore this event, November 21st (11/21), is goroawase for "i-i-bu-i", Eevee's Japanese name.
References
See also
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