Beneath the Dragoneye Moons - Chapter 4: System Day III

An ordinary young man enrolls in college, only to discover he has been mysteriously registered at Solstice Academy, which exists in another dimension.By a twist of fate, he encounters a painfully awkward vampire girl with a habit of sucking his blood, a succubus who wants to make him her plaything, and a Saint who was after his heart, literally.What could possibly go wrong with this kind of setup!?

-Unfortunately, someone reported my cover, so I won’t be able to upload a new one until August 7-Genre: Hentai/Dark Fantasy[Warning: sexually explicit content]No one in this world loves MILFs quite like Ren Volkom—and it’s all because of his adoptive mother: the gorgeous businesswoman Isabelle Lazar, who first opened his eyes to the magical world of sex.But there's more to it.Ren’s obsession with mature women isn’t just about chasing the forbidden dream of every eighteen-year-old.What Ren truly loves… is their blood.That’s why, every night, he hunts for new MILFs to eat... and it’s not just their blood he’s after.

This crossing is so strange, death crossing, game crossing, etc. are probably barely acceptable, but why can you cross even if the fish tank is broken?

and actually passed through the magic tree in “OVERLORD” that is said to be able to destroy the world?

No! It is sad enough to regenerate into a plant. The protagonist, Ainz Ur Gong, the undead king, has also accepted the adventurer’s guild mission and wants to kill me!

I want to change my destiny! Live! I want to-surrender!

Ainz: Since he has accepted the job commission from the Adventurer’s Guild, deliberate failure is detrimental to the prestige of Ainz Ul Christine (the “surrender” button has been deducted)

actually died as soon as he crossed, but there is still a chance to return~ from the beginning of the magic tree to this world.

I must change my destiny this time! Live!

- Description from novelbuddy

Emperor Ian Veroshion, the first noble mage, was betrayed and executed. Cursed to never be reborn, he awakens a century later as the illegitimate son of a disgraced ducal line, destined to be a hostage in a barbaric land. Stripped of his magic and his throne, he must navigate a world vastly different from the one he ruled, facing political machinations and a resurgent monster threat. But the embers of his past life still burn, and Ian will not surrender his legacy. He will reclaim his name, his magic, and perhaps, even his empire.