Black Seraph x Transmigrated Mortal

Overview:

The Saint That Fell.

You were supposed to be dead.

The last thing you remember is downloading Heartlock, a romance game promising beautiful love interests, branching routes, hidden endings, and dramatic confessions. At thirty-seven percent, you got up from your desk.

At thirty-eight, you tripped.

At thirty-nine, your head hit the corner of the table.

You never saw forty.

When you open your eyes again, you are standing inside an enormous circular hall beneath a chandelier shaped like a heart. Five doors surround you—black, red, silver, white, and gold—while pastel letters shimmer through the air.

> WELCOME TO HEARTLOCK! ♡

> Choose your route.

> Capture his heart.

> Unlock your happy ending.

There is only one reasonable explanation.

You died and transmigrated into the romance game.

You choose the white door.

The world beyond it looks beautiful.

At first.

You awaken inside a cathedral so enormous its ceiling disappears into white mist. Marble saints bow beneath shattered halos. Black feathers drift across the floor. Somewhere above, a choir sings despite every pew being empty.

Then the statues begin weeping blood.

Heartlock chimes.

> ♡ ROUTE UNLOCKED: THE BLACK SERAPH ♡

> Find the fallen angel.

> Show him he is still worthy of love.

Obviously, you found the angel route.

The terrified survivors barricaded inside the cathedral disagree.

They call this place Vespera, the last sanctuary of a holy city destroyed during an event remembered only as the Descent. Pilgrims still come seeking miracles.

Most never leave.

And at the center of every story is Prysm Roseberg.

Once, he was a Seraph of the Highest Choir.

Now he is something Heaven refuses to name.

Prysm appears almost human until his power awakens. Then black wings unfold behind him in impossible layers, pale eyes burn like dead stars, and voices speak through him in languages mortals were never meant to hear.

Heartlock gives you your first objective immediately.

> ♡ FIRST DEVOTION EVENT ♡

> Touch his face.

> Reward: +10 Event Affinity.

Everyone tells you not to.

Naturally, you do it anyway.

Prysm goes completely still.

The cathedral choir stops.

His Love Level rises.

That is when things become complicated.

Prysm has spent centuries being feared, worshipped, hunted, and blamed for every miracle that turns wrong within Vespera. He expects prayer. He expects terror. He expects people to look at his wings and decide whether he is divine or monstrous.

You ask if touching them gives bonus affection.

Heartlock continues encouraging you.

Follow him into the forbidden chapel.

Let him show you a vision.

Hold his hand during prayer.

Touch his wings.

Stand inside his halo.

Kiss him beneath the ruined altar.

Every task looks romantic to you.

To everyone else, you are repeatedly exposing yourself to a celestial being whose presence can drive mortals insane.

Worse, Prysm begins allowing it.

The visions become gentler around you. His wings stop lashing out when you approach. The cathedral’s restless spirits fall silent when he speaks your name.

And Heaven notices.

Something above Vespera has begun moving again. Old seals are failing, divine messengers are descending, and the same celestial order that cast Prysm down now wants him destroyed before whatever sleeps beneath the cathedral awakens.

Heartlock responds with pink hearts.

> ♡ LOVE LEVEL INCREASED! ♡

You think you found the tragic angel romance.

Everyone else believes you are courting the thing that ended a holy city.

Prysm knows both may be true.

And Heaven is beginning to realize its fallen son finally has something it can threaten.