This is a roguelike card game with tile-based match and clear combat.

You do not play numerical cards. You play cards with shapes.
Each turn, you place cards onto the board and trigger row and column clears to attack, defend, and chain effects. A single move can completely change the situation.

The pacing is fast, the feedback is immediate, and every decision has an instant impact.

So, you are the newly judged sinner? Hmph. You look like you might survive a fight.
No time to explain. I am giving you a chance at redemption. Go now. Descend into the Netherworld and cleanse the Remnants of Sin. The Seven Deadly Sins down there have grown far too arrogant. Deal with them. All of them.

This is not a game. This is your redemption run.
Anyone blocking your path, pull out your cards and clear the grid. Trash mobs everywhere. The last rookie broke down after meeting a single elite. Where was that “invincible deck build” they bragged about?
You look different. Move. Now. Let me see if you can make it to the end of the world.

As a newly arrived sinner in the Netherworld, you need to understand this clearly: the creatures here proudly claim to be “clean and hygienic.”
Do not believe it. This place is filthy, chaotic, and full of malicious tricks.
These scheming demons fight dirty, each one worse than the last, with zero sportsmanship, scattering tiles across the board however they please.

Still, you are not fighting blindly. Form rows and columns, and you can clear them away.
You can completely shut down enemy actions for a moment of safety, or unleash massive damage for pure satisfaction.

Do not waste the Remnants they leave behind. If you can take a card, take it.
You already understand Remnants of Sins better than most. Keep this momentum. I will support you from the shadows.
We will be waiting in the City of Innocence for news of you sweeping away the Seven Deadly Sins.

The Netherworld breeds desperation and dirty tricks. Hit back hard.
Never forget your real job. Any Remnants dropped by the dead, cleanse them. Do not trust their memories. They are nothing but nightmare whispers.

What, purification gave you new cards? Then pay attention.
Cost. Size. Shape. Whether the effects actually trigger when you need them. You only learn this by using them.

Do not wait until your hand is empty and rage sets in, wishing you could just spawn cards out of thin air.
There is no local cheat menu, no debug console, and no god mode to save you here. Not in this Netherworld.

Bad news. Very bad news.
The enemy has laid out a full board of attack tiles. Next turn, you are supposed to be wiped out.

You want to be a legend, don’t you?
Then think. Use those “invincible” cards of yours.

Do not tell me you are out of energy with half your hand locked.
And if the card’s shape does not even fit the grid, that is pure Netherworld torture.
What do you mean you meant to defend, but cleared attack tiles instead?

Wait.
You did not die.
You killed them.
You even obtained Remnants.

Impossible. Absolutely impossible. Look at my eyes.
Where did that Vulnerable damage boost come from?
What? You actually noticed the card effect and triggered it?
As expected. A true legend.

These strange relics are scattered throughout the Netherworld. It is only natural that you acquire them.
This is not stealing. This is emergency preservation and selective excavation.

Each relic has a unique and mysterious effect. As for how they actually work, do not worry about the details.
Thinking too hard leads to visions and hallucinations. For your own well-being, choose relics based on what your deck actually needs.

As for why you never seem to get the relic you want most, there is only one explanation.
Luck is also required to escape disaster.
Good luck.

To help you grasp the true nature of Netherworld creatures, the chief artist of the City of Innocence, Master kk, has reconstructed their appearances based on historical records.
Pay close attention to their expressions. Nothing about them is accidental.

How could the Netherworld ever be properly built alongside vermin like these?
These humanoid creatures are ugly and devious, each packed with tricks. Anyone who manages to survive down here usually has real skills to back it up.

Show them no mercy.
Desire and sin rule the Netherworld.
Remember this clearly: you were never meant to belong there.