Transmigrated as the Roommate of the Male Leads in a Lovecraftian Dating Sim?

[Third-person narration] You become a candidate for the male lead in a gender-swapped R19 otome game, but your roommates don't notice anything unusual. They greet you, joke around, and throw their arms over your shoulders as usual...

Your handsome roommates, each with their own style, are also candidates for the male lead. Together with students from the class next door, upperclassmen and underclassmen, and celebrity alumni, they're known as the [Zodiac Knights: The Twelve Signs].

But you're the [Qixi Festival Special: Unicorn], outside the twelve signs, with the most beautiful and romantic "Rose Nebula" and the nickname "Rose of the Universe."

And the heroine is the cute, sweet, naive girl in your class.

◆

Since this is an R19 game, the story often features male characters turning dark [Fallen Stars], confinement in a locked room [Caged Bird Ending], and yandere murder [Extinction Ending].

Your three roommates are all extremely popular and prone to turning dark. Roommate A is the fake male lead and the real boss, and turns dark on every route. He's the true yandere murderer.

To stay alive, you need to:

1. Survive.

2. Make sure roommates A, B, and C survive.

3. Make sure the heroine survives (at the very least, don't let her die by yandere murder).

4. Do your best to stop the twelve male leads from turning dark (a success rate of over 92% counts as passing).

And now, the game begins...

The dice fall, sounding the music of fate as they spin...

◆

[Reader's guide]

1. This is essentially a self-indulgent wish-fulfillment story, with a small amount of impure Lovecraftian elements.

2. The heroine has heightened perception and can easily see and understand monsters. She's stubborn and occasionally incredibly lucky, which means there will sometimes be reckless combat rounds.

.

Theme:.