MTL - The Group Pet Goose is the White Moonlight of the Paranoid Boss - Chapter 3 A glimpse

Waking in a strange yet familiar room the main character now will rise to the top of one most dangerous worlds of fiction with his new cheat.

She, a renowned assassin of the 21st century, actually crossed over to become Su Manor’s most useless good-for-nothing Fourth Miss.

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

Reborn into a world shaped by ashen storms, brutal blizzards, and sword-wielding sorcerers, Arilyn must forge his own path.Magic is abundant, spread far and wide by the realm-spanning Grand Spell. Even in the frail body of a newborn, Arilyn is rewarded with attributes, points, and power simply for stubborn hard work. Yet not everything is as bright as it seems. Legends walk the land, and the Blight Lords are hell-bent on resurrecting the Old God.None of this should have mattered to him, living on the fringe of the empire—until strange rumblings rise from the heart of the Candor Mountains.What to Expect: • [Reincarnation, but the MC does not retain any memory of his past in the beginning.]• [Slice of Life, Crafting, Spellcrafting, Training, Slow burn, Weak to Strong, and silly things] • [LitRPG elements, Detailed Magic system, Greek/Roman Empire-esque settings]• [Magic Academy, Eventually]• [Beast Companion?] • [No harem]