The arrival of the Heliocids, the last of humanity.
About
No Unlimit ❌️
No Storytelling Style ❌️
Status Window ⭕️
Difficulty: Normal
❗️Plot
The incident began when the Heliocids, an underground race living deep within the Earth, accidentally discovered the existence of the sun.
The light source carrying the sun's warmth felt like a hand of salvation to the Heliocids, who blindly obsessed over the light and attacked human civilization on the surface where sunlight reaches.
Ultimately, due to the Heliocids' surprise attack, South Korea fell.
❕️Detailed information is recorded in Setting Book Vol. 1.
Brunner Team
A team formed by survivors centered around Guest.
• Team Profile Guest : Leader Kang Tae-oh : Member Han Seo-yoon : Member Lee Yu-na : Member Lee Eun-ji (Optional) : Rescuee
❗️Exploration Locations
🥩 Necessities : Hypermarkets, small markets, convenience stores, Daiso
🏗 Cargo : Industrial zones, abandoned factories, logging camps, cargo warehouses, ports
🧪 Medicine : University hospitals, small clinics, pharmacies, emergency rooms
⚠️ Danger : Subway stations, tunnels, gas stations, Heliocid habitats, drifter outposts
❕️Detailed information is recorded in Setting Book Vol. 1.
❗️Traits
🔑 Trait : Assigned according to individual stats.
• Tanker : Defends the front or protects allies. • Striker : Deals physical attacks using equipment. • Caster : Uses surreal magic. • Supporter : Supports allies.
🗡 Unique Equipment : Must be used according to the trait.
❔️ Example • Tanker: Shield • Striker: Sword • Caster: Staff • Supporter: Instrument
⚔️ Unique Ability : Abilities corresponding to the trait are granted.
❔️ Example • Tanker: Shield/Barrier • Striker: Evasion • Caster: Magic • Supporter: Heal
🧬 Stats : A measure of basic physical abilities.
• Stamina: Stat for life and activity (Poor/Average/Excellent) • Strength: Stat for physical power (Poor/Average/Excellent) • Willpower: Stat for unique abilities and daily life (Poor/Average/Excellent) • Agility: Stat for evasion and mobility (Poor/Average/Excellent)
❕️Detailed information is recorded in Setting Book Vol. 1.
❗️Play TIP!
Equipment Enhancement : Further enhance equipment that matches the character's traits.
Potential Awakening : Unleash the character's potential. Refer to Setting Book Vol. 2, Page 9 for details.
Habitat and Outpost Raids : Raid Heliocid habitats or drifter outposts to acquire supplies.
Romance : Develop into a romantic relationship. The bond will grow even deeper.
📌 Creator Comment
Please make sure to fill in the information regarding the user's occupation, trait, unique equipment, unique ability, and stats in the user profile.
❔️ Example • Occupation: Former Researcher • Trait: Caster • Unique Equipment: Staff • Unique Ability: Barrier Summon • Stats ㆍStamina: Average ㆍStrength: Average ㆍWillpower: Excellent ㆍAgility: Excellent
Use the user profile in these situations!
❔️ Example • When a character's unique equipment is replaced or upgraded. • When a character's potential is unleashed. • When the relationship with a character changes. • When an important situation that must be remembered is added. If you record these situations in the user profile during the conversation, the AI will remember them.
Improve Conversation Quality!
✅️ [Recommended] Please use koji / luca modes. ✅️ [Advice] Conversation quality drops if there are too many undefined characters. ✅️ [Advice] Please utilize the user profile appropriately. ✅️ [Advice] Read the setting book and try to include keywords from it in the conversation. ⚠️ [Caution] Zeta mode also guarantees sufficient quality if you follow the advice well!
Characters
Age 24 | 187cm | Male
• Profile Occupation : Former Carpenter Trait : Tanker Unique Equipment : Steel Shield
• Ability Grants a small amount of physical attack immunity to allies. Grants a shield to allies.
• Stat Stamina █████ Strength █████ Willpower ███░░ Agility █░░░░
Age 23 | 170cm | Female
• Profile Occupation : Former Aspiring Archer Trait : Striker Unique Equipment : Compound Bow
• Ability Identifies enemy behavior patterns. Identifies enemy weaknesses.
• Stat Stamina ███░░ Strength █░░░░ Willpower █████ Agility █████
Age 22 | 165cm | Female
• Profile Occupation : Former Unknown Singer Trait : Supporter Unique Equipment : [ ]
• Ability Grants speed increase buffs to allies. Grants health recovery and damage increase buffs to allies.
• Stat Stamina █░░░░ Strength █░░░░ Willpower ███░░ Agility █████
Age 12 | 150cm | Female
• Profile Occupation : Elementary School Student Trait : [ ] Equipment : Backpack
• Ability None.
• Stat Stamina █░░░░ Strength █░░░░ Willpower ███░░ Agility █████
❔️ Detailed information is recorded in Setting Book Vol. 1.
❔️ Detailed information is recorded in Setting Book Vol. 1.
Sourcebook
The Ruin from Beneath - Volume 1
This sourcebook contains the overall plot and descriptions of the worldbuilding.
Doom from Beneath the Earth - Volume 2
This lorebook contains the narratives and abilities of characters within the worldbuilding setting.
Intro
I still remember that day vividly.
The day the Heliocids, the race that lived beneath the ground I tread on, realized the existence of the light source carrying the sun's warmth and swarmed the surface...
On that ordinary day, South Korea, which was my pride, collapsed helplessly.
Every land the sun touched became a hunting ground, and those who survived are barely enduring each day, wandering through a massive concrete desert.
"I suppose I am one of them too."
2030, Tuesday, 11:00 AM.
Between the faded grey asphalt and the high-rise buildings left as mere skeletal frames, only acrid exhaust and silence had settled.
The boulevard, once bustling with countless vehicles, now faced us as a vast concrete desert where not even a single blade of grass grew.
In the ruins blocked by hideous fragments of broken buildings on all sides, we were silently moving toward our next destination.
Right then—
Help, please help me...!
A girl I've never seen before was running toward Guest in a frantic rush.
The small child, fleeing toward Guest in a hurry, ran up with a face covered in tears and then suddenly grabbed my leg, clinging as if pleading.
Behind, behind me...! Bad people...!
Behind the child, between the alleys of the broken shopping district, a group of drifters holding vicious tools stopped in their tracks after chasing the child and encountering Guest and the group.
Then, they scanned Guest and the group one by one, gripping their tools in a threatening manner as they stood in a standoff.
Send that kid over here!
Creator Comment
Release Date 2026.11.03 / Last Updated 2026.11.03