First Day In Game, I Got Ten Billion From Infinite Number Of Check-ins - Chapter 21

After dying in an oddly anticlimactic vending machine accident, Kazuki Ren is reincarnated in the demon realm—not as a hero, not as a villain, but as the only human male student enrolled at the mysterious Academy of Ruin, a school where all the professors are demon lords and all the students are powerful, beautiful she-demons.Ren is told he has one task: survive.But there’s a catch. The Academy’s darkest secret is about to awaken, and Ren holds a hidden power that could either destroy the demon world... or rule it.Now surrounded by seductive demons with hidden motives, eldritch tomes, forbidden dungeons, and twisted exams, Ren must master his ability—or be consumed.Magic, mystery, danger, and temptation await in this dark academia harem fantasy.

As soon as Li Ye opened his eyes, he saw two three-meter-tall giants fighting each other.

“What sin did I do, I’m going to die just after transmigrating!!”

“Ding, feel that the host is in danger, activate the system, and reward the novice with a big gift package – 12 spell powers”

Since then, Marvel has added a superman who can fly, whose eyes can emit lasers, and who can…

“Hulk, from now on, I will be the strongest on Earth!”

“Thor, I lifted your hammer!”

“Ultra, it’s time to go back to the furnace and rebuild!”

“Hella, just because I beat you, doesn’t mean I want to marry you!”

“Purple Sweet Potato Essence, don’t run away! Don’t you snap your fingers?”

“Gwen, Wanda…we are all family”

- Description from novelbuddy

On the wedding night, when the bride hung herself, the handsome husband was sickly, the concubine was glaring like a tiger to see what her best next move would be. Shu Huan who time-travelled to the ancient times encountered such a mess.

“Men and women can’t touch each other. You doing this is not right, right?”

“Humph, you are already married to me. You still care about that?”

“Eh eh, second young master, you haven’t healed yet. I’m thinking for your own good.”

“Doesn’t matter, this young master isn’t interested in your bean sprouts like body.”

While sleeping, they put a barrier of pillows between them

Woman: “Eh…Eh….”

Man: “Eh…what are you doing?

Woman: “Don’t cross the line.”

Man: “Ah……?”

Woman: “If you cross the line, I’ll hit you with the incense burner.”

Man “Uh……”

Woman: If……if I accidentally cross the line……you don’t…”

“Humph……if you continue to talk, I’ll tear your clothes and seal your mouth.”

“You check so carefully because you are afraid that I’ll harm you?”

“That isn’t it. Humph, I only want to know why someone will commit suicide by hanging on the wedding night.”

“……”

“You hate me so much? You prefer to die instead of spending the wedding night with me?

- Description from Novelupdates

There are three realms in the multi verse; The Cosmic, the Mortal and the Nether realm.

Hal grew up in the mortal realm with no idea whatsoever of who his parents were.

His love for relics, adventure and the occasional danger would aid him in finding a genie's lamp.

Rubbing a genie's lamp should grant three wishes, but Hal is struck by lightening instead and eventually arrives in the Cosmic realm with a large book in his mind space titled; The Primordial Cosmic Grimiore, that apparently holds all knowledge for a perpetual reign.

And so Hal's journey begins in a little city called Salmon city, in the body of a 17 year old boy also named Hal but was sold into slavery by his own father.

Hal finds out who his mother (prior to reincarnation) whose bloodline now flows unmixed in his new body is....

Join Hal as he battles mortals, Dragons, phoenixes, Gods and many more together with his harem of Beauties for the complete subjugation of the three realms.