Dawn.
In an upscale residential area of Tokyo, the capital of the Sakura Nation, a luxurious villa stood apart from the surrounding mansions, nestled against the mountainside.
Inside, a strikingly handsome young man with fair, flawless skin gazed out through the floor-to-ceiling windows at the soft, warm sunlight.
"Even though there haven't been any spatial quakes yet... the Spirits definitely exist in this world."
"Sigh... What should I do?"
He let out a quiet sigh, his face clouded with worry.
After a brief silence, he muttered to himself again, "Well, might as well check my luck for today."
Closing his eyes, he focused inward, silently calling up his status panel. A holographic screen materialized before him:
[Name: Lin Yue]
[Strength: Mortal]
[Abilities: Charm Beyond All, One and Only, King of Comprehension, Unfathomable Virility]
[Items: Thunderfire Sword, Red Potion, Blue Potion, Pile of Gold...]
[Charm Beyond All] – Possesses allure and beauty that transcend all races, entities, and even abstract concepts. Simply put, any woman who lays eyes on you will be deeply moved by your charm, fall irrevocably in love, and never waver in devotion.
[One and Only] – A singular existence, unaffected by any timeline interference, existing beyond the constraints of time itself!
[King of Comprehension] – You can instantly and fully understand and master anything.
[Unfathomable Virility] – Your sexual prowess has no limit! Relentless, never-ending! You can pump pure, potent essence into others, making them stay young forever and live for eternity!
That's right.
The boy named Lin Yue was a transmigrator from Earth.
About a year ago, he had crossed over into this world—a blended universe combining Date A Live with other slice-of-life anime settings.
Before his transmigration, Lin Yue had been a 25-year-old corporate drone. Then, one day, for reasons unknown, the sun exploded, annihilating the entire solar system—Earth included.
In that cataclysm, Lin Yue activated a system that shielded him from destruction. As part of its protection, the system reverted his body to that of a 16-year-old before dumping him into this new world.
Stranded without an identity, Lin Yue wasn't sure if his luck was good or bad—because the first person to find him was none other than Kannazuki Kotori!
To most, that name might not mean much, but Lin Yue knew exactly who she was.
The origin of all Spirits—the First Spirit, the catalyst behind everything in the original story.
Running into the final boss right after arriving in this world had nearly made Lin Yue want to cry.
But surprisingly, Kannazuki Kotori didn't attack him. Instead, she showed him kindness—and something more, an emotion Lin Yue couldn't quite place.
Without asking questions, she handled his identity issues and even arranged a place for him to stay.
And not just any place—he was taken in by the Itsuka household!
The Itsuka family didn't treat Lin Yue like a stranger. Instead, they welcomed him warmly. Under the parents' blessing, he even became the sworn older brother of their daughter, Itsuka Kotori.
Of course, over the past year, Lin Yue had completely maxed out Kotori's affection. Now, the girl called him "Onii-chan" more naturally than she called her own parents.
Lin Yue stared at his status panel, his eye twitching slightly at the glaring words under Strength:
Mortal.
Even though he'd been in this world for a while and had a cheat-like system, it wasn't exactly overpowered—so far, it only had a monthly sign-in function, and the rewards weren't always impressive.
After a Year of Sign-Ins…
A whole year of monthly sign-ins, and yet—no actual strength gains. Just a bunch of random junk.
The abilities "King of Comprehension" and "Unfathomable Virility" were the only notable rewards from his year of check-ins.
Sure, they sounded impressive, but at the end of the day, neither actually made him any stronger.
As for the rest? Mostly useless items—health potions, mana potions (straight out of a video game), and even a hundred pounds of gold.
But luck has a way of turning around. One month, his sign-in reward was a sword, though its name (Thunderfire Sword) sounded a little sketchy, at least it was a real weapon!
And today? Another chance.
Lin Yue had woken up early, cleansed himself, even lit some incense, anything to boost his luck.
"Please, just give me something good this time..."
Heart pounding, he stared at the [Sign-In] button before finally pressing it.
[Ding! Congratulations, Host! You have obtained a treasure from the Marvel Universe—an incomplete fragment of the OAA (half of its power): The Cosmic Heart!]
…
Huh?
"Wait… WHAT?!"
For a full second, Lin Yue just stood there, dumbfounded. Then—
"HOLY SHT!!!"
He nearly jumped out of his skin.
The Cosmic Heart.
Even across the infinite multiverse, this thing was an absolute nightmare of a relic.
In the comics, when Thanos got his hands on it, he solo'd the entire universe. Wiped out existence itself. Even the Living Tribunal, the cosmic judge of the omniverse, got stomped.
It was only after Adam Warlock convinced him to undo everything that Thanos gave it up.
Now, sure, the Cosmic Heart didn't defeat the true Living Tribunal (just an M-Body, a conceptual avatar). But still—Thanos himself said it was infinitely stronger than a full Infinity Gauntlet or a Cosmic Cube.
And now? Half of that power belonged to Lin Yue.
[Ding! Will you fuse with the Cosmic Heart?]
Fuse. Now.
He didn't hesitate. Not even for a second.
BOOM—
The world froze.
Wind, clouds, time, space—everything stopped.
Then, for a brief moment, Lin Yue felt limitless power surge through him before instantly receding.
Light swirled around him, galaxies flickering in and out of existence as his form shifted between tangible and ethereal.
And just like that—it was over.
"So this… is the power of the Cosmic Heart."
He clenched his fist, feeling the universe itself bend to his will.
"I could erase everything with a thought."
A slow smirk spread across his face.
"Now I've got real power. Even in this Date A Live world, I can protect myself and do whatever the hell I want!"
And what did he want?
Well, he was surrounded by Spirits—beautiful, otherworldly girls—and he'd be lying if he said he wasn't interested in getting… acquainted.
Just as he was grinning at the thought—
[The Omniversal Chat Group invites you to join. Will you accept?]
Lin Yue blinked.
"A… chat group?"
Lin Yue hesitated for just a moment, quickly running the possibilities through his mind.
If I join this thing... does that mean I'll have two cheat abilities now?
The thought alone was enough to make his pulse quicken.
This wasn't just some random pop-up—it was an opportunity. And in a world where power meant everything, he wasn't about to let it slip by.
"Hell yeah. Let's do this."
"Agree!"
No second-guessing. No hesitation.
Whatever this Omniversal Chat Group was, he was all in.