The Response to my Drunken Proposal was Surprisingly Good - Chapter 18: The Second Princess, Hedera (1)

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

Every novel has a slag character, the one who decides to abandon the protagonist at his lowest, most helpless point, either because he can’t stand the poor guy’s circumstances or for other reasons. But after the protagonist wins his way in life again, they’re the ones who beg with broken sobs to be taken back.

Still, water once spilled can’t be recovered again.

Yet the unlucky Shen Jiayan has been bound to a Water Recovery* System to do just that.

*water recovery – comes from an idiom that means “spilled water can’t be recovered” (English equivalent: there’s no use crying over spilt milk).

- Description from Novelupdates

Dimensional Knights—legendary heroes who uphold order across the infinite realms. Wielding powers beyond comprehension, their purpose is singular and unwavering: to preserve the balance between worlds and defend against the ever-looming threats that seek to plunge them into chaos.Zane, a boy from Earth—one of the weakest and most forgotten realms—had his world forever changed the day he first witnessed the awe-inspiring power of the Dimensional Knights. In that moment, a dream was born. He wanted to become one of them. A hero. A symbol of strength and salvation.But fate had other plans.One tragic event shattered his world and dragged him into a downward spiral from which there was no escape. As the years passed, the dream that once filled him with hope twisted into something far more desperate. Becoming a Dimensional Knight was no longer about admiration or ideals—it became his only path forward. His only way to fight back. His only way to reach those who caused him immense pain and blood.Now, Zane's journey is not about heroism. It's about vengeance, survival, and rewriting the destiny forced upon him by those who wished for his death.Unbeknowst to him, this very path he was taking would change the order of the world forever.

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

- Description from Novelupdates