Last Updated on 19 December, 2025
You have likely already fallen in love with the steam, the suds, and the adorable clientele. But running a top-tier bathhouse in Maltese’s Fluffy Onsen requires more than just warm water. You need to fill your establishment with every critter from the Animal Kingdom.
Whether you are hunting for the elusive Golden Monkey or trying to figure out why the Raccoon refuses to show up, you have come to the right place. This guide serves as your complete roadmap. We will cover how to unlock all 58 customers, including the new additions from the Summer Fever and Bird DLCs, and we will walk you through securing 100% of the achievements.
Table of Contents
Moonlab Original Characters
These characters represent the mascots and the original friendly faces of the game. You will likely see them first as you begin your journey.

Maltese and Retriever
You do not need to do anything special here. The Maltese and the Retriever are available from the very beginning of the game. They serve as your loyal starting customers.
Baby Ogu
This adorable addition requires a specific milestone. You can unlock Baby Ogu by owning the Ogu and the Secret Forest game. If you do not own that game, simply unlock 4 additional stages beyond the default stage to welcome this guest.

The Feline Collection (Cats)
Cats are fickle creatures, but they love a good spa day. Here is how you get the entire clowder to visit.

Yellow Cat
You must demonstrate your spa is aesthetically pleasing. Interact with friends to unlock this guest. Alternatively, earn the Attractive Spa Platinum medal at least once.
Black Cat
This guest follows the crowd. Once the Yellow Cat visits your bathhouse 25 times, the Black Cat will start appearing.
Tabby Cat
The pattern continues here. Ensure the Black Cat visits the bathhouse 100 times to unlock the Tabby Cat.
Turkish Angora
This elegant cat prefers a sunny disposition. You unlock the Turkish Angora by unlocking the Sun City stage.
Calico Cat
This unlock requires specific furniture placement. You need to earn 50 stars by having guests sit near the TV.
Siamese Cat (Summer Fever DLC)
This cat loves a splash. You unlock the Siamese Cat by unlocking the Water Park stage found in the Summer Fever DLC.

The Chompers (Rodents)
From tiny mice to the chillest capybaras, these guests bring a lot of character to your baths.

Gray Mouse
You need to prove your spa is the talk of the town. Interact with friends or earn the Most Popular Spa Platinum medal at least once.
Spotted Mouse
Persistence is key. The Spotted Mouse unlocks after the Gray Mouse visits the bathhouse 25 times.
Brown Mouse
Keep the mice coming. When the Spotted Mouse visits 100 times, the Brown Mouse joins the roster.
Hamster
This guest loves amenities. Earn 500 stars specifically as guests use your various facilities to unlock the Hamster.
Guinea Pig
Similar to the Hamster but focused on the water. Earn 500 stars as guests use the bath. This counts whenever a guest earns a star after using a bath of any size.
Capybara
Everyone’s favorite animal requires a cozy autumn vibe. Unlock the Maple Village stage to invite the Capybara.

Canine Companions (Dogs)
Man’s best friend makes for a great customer. Here is how to fill your spa with puppies.

Yellow Dog
Hygiene is paramount for this pup. Interact with friends or earn the Cleanest Spa Platinum medal at least once.
Black Dog
Loyalty matters. The Black Dog appears after the Yellow Dog visits the bathhouse 50 times.
Spotted Puppy
This one takes time. You unlock the Spotted Puppy after the Black Dog visits 200 times.
Shiba
This Japanese icon fits perfectly with the theme. Unlock the Cherry Blossom City stage to find the Shiba.
Raccoon
This is one of the trickier unlocks involving a towel mechanic. You must see 100 guests leave with towels on their heads.
Welsh Corgi (Summer Fever DLC)
Unlock the Valley stage in the DLC to welcome the Welsh Corgi.

Rabbits and Hares
Hop to it and get these long-eared guests into your warm waters.

Brown Rabbit
Staff quality attracts this guest. Interact with friends or earn the Best Staffs Platinum medal at least once.
Pink Rabbit
Wait for the Brown Rabbit to visit 50 times to unlock the Pink Rabbit.
Blue Rabbit
Wait for the Pink Rabbit to visit 200 times to unlock the Blue Rabbit.
European Rabbit
This bunny prefers a storybook setting. Unlock the Fairytale Forest stage to find the European Rabbit.
Angora Rabbit
Guests who purchased bath supplies, used shower seats or stands 100 guests.
Lionmane Rabbit (Summer Fever DLC)
Beauty attracts this rabbit. You unlock the Lionmane Rabbit after customers visit the Hair Salon 100 times.

Primates and Monkeys
These guests love the heat. The Golden Monkey specifically requires a very precise setup.

Brown Monkey
Aim for luxury. Interact with friends or earn the Highest Spa Platinum medal at least once.
Black Monkey
The Black Monkey unlocks after the Brown Monkey visits 75 times.
Beige Monkey
The Beige Monkey unlocks after the Black Monkey visits 300 times.
Hot Spring Monkey
Appropriately, this monkey loves the cold. Unlock the Winter Village stage.
Golden Monkey
This is a secret unlock that requires specific decor. Put the Golden Frog Water Deco and Golden Koi Statue in the Golden Tiled Bath
Squirrel Monkey (Summer Fever DLC)
Summer stages are hot. You unlock this guest after thirsty customers quench their thirst 100 times. Ensure you have amenities with a droplet icon to help them cool down.

Sheep and Goats
From the fluffy sheep to the mystical goats, these animals bring a farm charm to your onsen.

White Sheep
Treat your workers well. Interact with friends or earn the Best Employer Platinum medal at least once.
Black Sheep
The Black Sheep unlocks after the White Sheep visits 75 times.
Horned Sheep
The Horned Sheep unlocks after the Black Sheep visits 300 times.
Reindeer
Unlock the High Mountain Village stage to find the Reindeer.
White Goat
This requires paying attention to guest conversations. Sometimes guests display thoughts or dialog bubbles while conversing or looking at decorations. Click these bubbles to claim stars. Do this 50 times to unlock the White Goat.
Black Goat (Summer Fever DLC)
You need to master the Franchise Management Desk. Obtain 250 Leaf Points at the desk to unlock this guest.

Splashers (Water Lovers)
These animals are naturally at home in the water.

Brown Otter
Focus on your finances. Interact with friends or earn the Economic Booster Platinum medal at least once.
Green Otter
The Green Otter unlocks after the Brown Otter visits 100 times.
Red Otter
The Red Otter unlocks after the Green Otter visits 400 times.
Sea Otter
Unlock the Harbor City stage to welcome the Sea Otter.
Beaver
This requires a bit of slapstick comedy. You need to watch guests slip on puddles 1000 times. This happens automatically when a guest steps on a puddle, so just let the mess accumulate slightly.
Platypus (Summer Fever DLC)
Similar to the Black Goat, you need the Franchise Management Desk. Obtain 250 Water Drop Points to unlock the Platypus.

The Bear Family
Big guests mean big hearts. Here is how to unlock the bears.

Brown Bear
Respect tradition. Interact with friends or earn the Most Traditional Spa Platinum medal at least once.
Black Bear
The Black Bear unlocks after the Brown Bear visits 100 times.
Polar Bear
The Polar Bear unlocks after the Black Bear visits 400 times.
Panda
Unlock the Bamboo Garden stage to find the Panda.
Red Panda
This guest loves nature. Accumulate 60 minutes of watching the outdoor view. You need to go outside the spa and stay there.
Sun Bear (Summer Fever DLC)
Use the Franchise Management Desk again. Obtain 250 Sun Points to unlock the Sun Bear.

The Bird DLC Flock
If you own the Bird DLC, you have five avian friends to collect. Check your main menu post box symbol to ensure the DLC is installed.

Chick
You unlock the Chick simply by owning the Bird DLC.
Sparrow
The Sparrow unlocks after the Chick visits 25 times.
Varied Tit
The Varied Tit unlocks after the Sparrow visits 100 times.
Long-tailed Tit
This requires marketing. Distribute 100 flyers to outdoor guests.
Fairy Wren
This involves staff management. Refresh 10 times at the Staff Dispatch Desk. Purchase and place the Staff Dispatch Desk, then simply click Refresh 10 times.

Achievement Hunter’s Guide
There are 10 core achievements to master for 100% completion.

1. Key to Success
Collect medals. You simply need to raise your total medal count to 24 to claim your first key.
2. Growth
Max out the stats of a staff member. We recommend upgrading the free staff you started with (like the Maltese). You can also accept new staff applications from the mail to get more candidates.
3. Pain of Farewell
Fire a staff member. Click the Fire button on any staff member. Note that you cannot fire default staff. Also, avoid firing upgraded staff as you will not get your stars back.
4. 2am Feeling
This one is simple but requires a late night. Play the game at 2am.
5. Aggressive Marketing
You need a Promotions Desk (costs 12 stars). Use it to set the ad budget to 100% for one specific species.
6. Spa Master
Reach Platinum rank for every single medal (32/32).
7. Hospitality Master
Unlock all normal rarity guests. This usually happens naturally as you complete the Spa Master achievement. Alternatively, interacting with friends allows you to unlock the initial variation (the gray ones) of each animal.
8. Letters from the Heart
Unlock all letters in the Mailbox. Most unlock as you play, but the Animal City Hall letters require specific user actions (see the Mail Guide section below).
9. Millionaire
Break the gold counter. You must reach a gold balance over 9,999,999.
10. Global Brand
Unlock 8 different areas. You do this by getting 24 medals on a stage to unlock the next one. Repeat this process until you have 8 areas.

Mastering the Mailbox (City Hall)
To get the Letters from the Heart achievement, you need to trigger specific mails from City Hall. Here is the checklist for the ones that require action.

- Temporary Closure: Click the pause icon to temporarily close your spa.
- Remove Mode: Click the Bulldozer icon (remove mode) and actually remove something from your spa.
- Add Floor: Purchase another floor. This initially costs 6,000 gold.
- Lighting: Place some wall lamps, light sources, or a painting. Look under “Decoration” and then “Wall” to find these items.
- Outdoor: Place a Flyer Desk outside.
- Staff: Access the staff menu.
- Select Region: Collect 24 medals to get a key.
For other mails, upgrade all Medals to Platinum to ensure default guests visit. Once default guests are unlocked, mails generally appear by random chance as you play. You can use the Promotions Desk to target specific species if you are missing mail from a certain animal.

Conclusion
Managing Maltese’s Fluffy Onsen is a delightful balancing act of decoration, staff management, and customer satisfaction. By following this guide, you will fill your codex, earn every achievement, and create a bustling bathhouse that every animal in the forest wants to visit.
Remember to check for the seasonal updates, as Moonlab often adds new free content. Enjoy the steam and the cute company!

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