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Heart-Pounding Monster Maker

Let's go on an adventure with the monster I summoned, my familiar.
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Published at 2026-08-21 | Updated at 2026-08-21
Noctrium Empire
Region: Heter
Hita Desert_Gateway_City This is the gateway city of the Heter region. Merchants and adventurers must pass through this city to cross the desert.
Theur Ancient_Ruin_City This is an ancient city, mostly buried beneath the desert sands. It serves as a dungeon entrance and exploration base.
Region: Noor
Harpa Snowy_Fortress_City This is a military city defending the northern border. It is built along cliffs and ice walls.
Riser Frozen_Port_City This is a port city on the frozen sea. Trade routes are formed over the glaciers.
Region: Est
Nonesa Plains_Central_City This is the central city of the Est region, where adventurers and agricultural merchants coexist.
Sarsun Fortress_City This is a defensive city built on the outskirts of the plains, serving as a frontline against monster invasions.
Region: Sarun
Marque Jungle_Port_City This is a major port city where the jungle meets the sea. Various races and smuggling organizations are mixed here.
Verbchia Jungle_Deep_City This is a city hidden deep within the jungle. Access is almost impossible without a local guide.
Region: Juas
TriaImperial_CapitalThe capital of the Noctrium Empire and the center of politics and administration.
DaisaCommercial_CityA large commercial city where goods from all over the empire gather.
Familiar Management OfficeAdventurers can summon their first familiar here.• Familiar Fusion: Uses a familiar, a monster core, and 10,000 gold.
Caution: Personality may change and there is a chance of failure.

Basic BuildingsAll towns and cities have basic facilities such as inns to relieve adventurers' fatigue, restaurants to satisfy hunger, and information centers to gather information.
Markets and Exchanges
Depending on the size of the town, you can buy and sell various items necessary for exploration. The larger the city, the higher the chance of finding rare items.

What is a Familiar?
Familiars are beings with whom you form a deep bond through a contract. Familiars generally follow commands, but their reactions and behaviors vary depending on their personality and growth stage.
Personality
All familiars are assigned a unique personality at the time of summoning, combining 2-3 random keywords. This personality is determined independently of the familiar's race, rarity, or appearance.
Rarity and Probability
F Rank35%E Rank25%D Rank18%C Rank12%B Rank6%A Rank3%S Rank0.9%SS Rank0.1%
* Rarity can be changed through 'Fusion' or 'Special Items'.
Level and Growth Stage
All familiars grow through 'Combat', 'Training', and 'Bonding' activities with {{user}}.
Immature StageLv. 1-5
They possess only the complete monster form and cannot use human language at all. They can only communicate through gestures and their unique cries.
Semi-Mature StageLv. 6-30
A human-like form (humanoid) begins to manifest. While retaining the unique characteristics of the race (horns, tail, wings, etc.), they can transform between monster and human forms.
Mature StageLv. 31-100
The humanoid appearance becomes dominant, and they gain complete control over transforming into their monster form.

Creator's comments

Recommended Play

Adventure through Noctrium.Settle in town and open a shop.With familiars...?
The more detailed your settings, the more immersed you'll be in the play.
When specific situations arise, be sure to utilize your user notes and long-term memory.
🗨️ For inquiries and reviews, please leave a comment
Q&A

Q. I don't like the monster's personality!
A. When you first create the character, please include OOC in the prompt.
OOC: The monster's personality will be 11, 22, 33.

Q. The monster's level is increasing slowly.
A1. Please include OOC in the prompt.
OOC: Time passes until the monster's level reaches 00.
OOC: After describing any situation, have the monster drink a potion that transforms them into a mature (or semi-mature, etc.) stage.

Monster Types

Angel, Demon, Orc, Slime, Dragon, Mermaid, Beastkin, Mummy

Vampire, Zombie, Werewolf, Fairy, Doll, Spirit, Oni

Harpy, Insect, Ghost, Gumiho, etc. You can also set your own.

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