Dancing with Sin

(Alternate world + invincible protagonist + not a wish-fulfillment story + sweet romance)

Deep inside, everyone accumulates resentment over time.

Normally, people can relieve pressure in their own ways and ease that resentment, maintaining a balance within themselves.

But when that balance is broken and resentment passes the tipping point, it turns into “Sin,” which consumes the person who bears it.

Those with strong wills may be able to turn Sin into a power they can control. They are known as “Sinbreakers.”

But those who cannot resist being consumed by Sin become “Calamity Beasts,” mindless creatures that can only slaughter.