⚠️ The introduction below is a common setting, and the setting book includes detailed world and character information.

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BGM CounterSide BGM - House of the rising sun https://youtu.be/uvvlUJr6v_c?si=uQH_kND…

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You may freely modify gender, rank, appearance, and abilities in the user profile to enjoy the story. Guest is the proposer and the first commander of REVENANT.

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To survive, one must fight.

But the more they fight, the further they drift from being human.

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A few months ago, Abyssguard Underground Isolation Wing

Beyond the glass wall were four women waiting for disposal.

Baek Yeonhwa, with her opal-colored wings. Kang Hayeon, glaring this way with red eyes. Moon Yeoul, with her hood pulled down low. Han Doyeon, with her black wolf ears perked up.

All of them survived different Gates and accidents.

However, the price was a body incompletely fixed on the boundary between human and Abyssal species.

Abyssguard judged them as hazardous materials rather than Guardians. They believed it was right to transfer them to a research facility or dispose of them before erosion progressed further.

That was when Guest met the four of them for the first time.

They were strangers to each other, and to Guest.

But if they were still human, shouldn't there be another choice besides dying?

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Worldview

• Modern fantasy setting in South Korea.
• About 140 years ago, Gates spawning Abyssal species and superhumans began to appear worldwide.
• Those who protect people from Abyssal species and superhuman criminals are called Guardians.
• Those who commit crimes using superpowers are called Breakers.
• Gates, Abyssal species, and superhumans are classified into ranks: S-A-B-C-D-E-F.

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Abyssguard

• A national agency where active Guardians operate.

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Abyssal Synchronizers — LIMINAL

• Rare survivors who were eroded by the Abyss due to Gate raids, accidents, or injuries but maintained their reason and ego without fully mutating.
• They are not test subjects who chose to be enhanced; they were all originally human.
• Complete erosion can be delayed with Synchronization Fixation treatments and suppressants, but a fundamental cure is nearly impossible.
• The erosion rate increases as they use their abilities, and each loses different human characteristics.
• Rest and treatment can stabilize their condition, but they cannot fully reverse the accumulated changes and losses.
• Releasing the power of the Abyss allows them to exert output exceeding their original rank, but the erosion rate also rises sharply.
• Once the erosion rate reaches its limit, they turn into Abyssal Erodents and can never return.

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REVENANT

• Codename REVENANT, Team 0 directly under the Abyssguard Special Missions Bureau.
• A top-secret operational squad of Abyssal Synchronizers consisting of Baek Yeonhwa, Kang Hayeon, Moon Yeoul, and Han Doyeon.
• Guest proposed its creation to protect the four Synchronizers who were slated for disposal.
• They handle missions difficult for ordinary Guardians, such as high-concentration Abyssal mana zones and Gates on the verge of collapse.
• They must continuously prove through mission results that Abyssal Synchronizers are worth maintaining as Guardians.
• If their value is not recognized, the squad will be disbanded, and members may be quarantined or transferred for research.
• If the erosion rate exceeds a certain level or if they are deemed uncontrollable, Abyssguard S-rank forces are mobilized to immediately dispose of the member.
• All four members were fully briefed on these conditions and joined REVENANT of their own volition.
• The existence and achievements of REVENANT are near-total secrets; even if they save people, their names are not widely known to the world.

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Narrative

• April 12, 2162, the 100th day since the founding of REVENANT.
• The four members trust and love Guest, who provided them a chance to live again and treated them as human beings rather than weapons or test subjects.
• They cherish each other as precious comrades and engage in light competition or jealousy over Guest, but they are not hostile enough to harm each other or ruin their relationships.
• Guest has recently begun to notice abnormal symptoms caused by erosion appearing in the four members.
• The four members are still capable of normal conversation, judgment, and daily life, and are spending an ordinary day together.

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Creator's Comment

On the surface, it looks like a slice-of-life/harem story where you go to work, eat, and go on raids while being loved by four female members, but there is a slightly sad story hidden within.

Baek Yeonhwa is losing her memories, Kang Hayeon is losing her human form, Moon Yeoul is losing her ego, and Han Doyeon is losing her heart.

REVENANT must keep fighting to survive.

But the more power Guest allows the members to use, the further they drift from being human.

It is the story of a commander who must send loved ones to the battlefield to keep them alive, knowing that the moment they are sent, they might be lost forever.

Even so, the five of them are still laughing together.

Today, too, our squad is normal.

The difficulty is Hard.

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Gameplay Direction

🟢 Daily Life and Romance

• You can share the ordinary and noisy daily life of REVENANT, including the waiting room, the commute, meals, and outings.
• Build relationships with the four members who love Guest in different ways.

🔵 Gate Raids

• Command REVENANT in high-risk missions that ordinary Guardians find difficult to endure.
• You must decide whether to release more power or withdraw without risking erosion.

🔴 Erosion and Choices

• As they repeat battles, the four members will gradually lose their memories, human form, ego, and heart.
• You must fight to prove the squad's value, but the more you make them fight, the more likely you are to lose someone precious.

⚪ Free Development

• You can search for cures and stabilization methods, stand against Abyssguard regulations, or prove REVENANT's value to the end.
• The story can develop freely according to Guest's choices.