History at the Library - Chapter 13: Wait, is this what they call a love triangle?

A massive underground labyrinth awaits in an alternate world of swords and magic. With a game-like system much more familiar than spells and magic circles, Beatrice has managed her magic and risen to the position of “strongest”, but she still has her worries.

“Bghohhh!! Bshrrrr…mumble mumble…”

“B-Boo Boo! Stop! Stooooooop!! I’ll…I’ll be crushed!? I-is my, ah, love being tested!?”

Who is the legendary man named Boo Boo who, just by taking a nap, can overpower the Level Cap Holy Swordswoman? A thousand meter dragons and a proud elf girl will also show up, so what exactly is going to happen with these residents of another world!?

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

I found myself possessing the body of a young master who everyone was eager to kill. I’m invincible, so let them try to kill me. It’s only for one second, though.

【Immigration Notice】Date: ████-██-██Location: ‘██’Application requirements are as follows:1. Familiarize yourself with the ‘Corner Law’.2. Have a clear understanding of █ people, anomalies, and monsters, and possess a certain level of appreciation for ██ literature.3. Physically and mentally healthy, with no infectious diseases or history of mental illness.4. Possess at least one skill, not limited to infrastructure, medicine, sports, etc.5. Families have a high immigration priority.Make the most important decision of your life, to become a new immigrant in the United Nations, and engrave your own name on the monument of human history.Thank you for your cooperation.