Who Are Rimuru'S Strongest Allies In 'Tensei Shitara Slime Datta Ken'?

Serra is a normal senior high school student who works really hard every night and weekend to pay off her parents' debts from loan sharks. But when she couldn't keep up with payments anymore, she decided to end her life. Surprisingly, she woke up in a different light-- in another world. What's more shocking was when she is addressed by one of the people as the demon king's bride.

Miaka Von Speltsper, the myth, the legend and the daughter of two Gods. Miaka, the Demon King and the head of the Dark Council is the most powerful demon ever known to mankind, but she has a secret. She’s a hybrid. And the world she lives in has hunted down and eliminated every single hybrid in all the dimensions. But now…someone knows her secret, someone who has the power to destroy her. However, the world is changing and one of those changes is Kaleb Takeshi, the man with extraordinary eyes who has stolen Miaka’s heart with just one glance. But there is something about Kaleb that Miaka can sense but can’t describe. And not only is he human, he’s an enemy who has decided to give his loyalty to her. In this world of lies, deceit and betrayal; can Miaka trust her heart or will she have to choose century’s old traditions to stay alive? Because if she dies, it will truly be the end of the world.

Ritian got transmigrated inside the unfortunate land of excessive trees and barren sea of Cabato. Having his journey from being a pitiful scratch to a definite catch, he was with Wenren. A martial hero who foolishly lost his sense of sight; and propriety. Together they conquered big bosses. Piercing the armor of death himself and make a narrow escape hand in hand. They promised to dedicate themselves in protecting the other. There's one crucial thing that Ritian wanted to clear about their relationship though. "Wenren, do you want to sleep with me?" "I'm not gay." Indeed, this is a difficult thing. Ritian needed to cross this non-existent barrier between them. Because even if Wenren doesn't want to, he himself kept on dreaming about it.

Arianna had not planned on using magic to summon anything, she just wanted to get out of an arranged marriage. She was told of the ancient magic of summoning a guardian but instead she had summoned a demon—the demon king himself. But what would he ask in return for his loyalty to this princess?

He died killing the Demon King. He woke up sixty years too early. Now the monster is a young man. And he is running out of reasons to stay away. --- Lysan Dusk was the hero who saved humanity. He killed the Demon King, ended the war, and delivered the world from suffering, and his reward was betrayal. He wakes up in a young student's body in a dormitory room of a magical academy, and the calender shows that the date sixty years before he was born. The world outside hasn't broken yet. The war hasn't happened. Lysan's plan is to keep it that way by staying completely out of it. Fail his combat exams, spend whatever borrowed time he has left, living a quiet life, where nothing requires him to be a hero. The man who will become the Demon King, the most feared monster in history is still young and beautiful, with pale grey eyes that find Lysan across every crowded room like he is the only person worth seeing. Lysan knows what those eyes will become. He has looked into them across battlefields, spent a lifetime seeing them in nightmares. He never expected it to feel like this up close. Roman is everything Lysan was warned about — magnetic, dangerous, impossible to ignore. Everyone except Lysan, refuses to be charmed, refuses to feel anything at all. But now, he is failing spectacularly at them because Roman keeps finding him. Keeps watching him and making Lysan's carefully rebuilt walls feel like paper. Lysan knows the ending. But for the first time in two lifetimes, he is wondering if the ending can change. If the monster can be loved instead of killed. If staying is braver than running.

"Master, do you miss this apprentice?" Lips painted in bright red ticked up in a sharp smile. Her eyes were a pool of dark red, like a swirl of the finest wine. One jaded hand in his throat, nails slightly digging in the skin there, the other was on his cheek carefully caressing. The clashing of both gestures were confusing, but Rion's mind only provided one instinctual response; to run away as far as possible. ----- Rion Ren, one of the strongest sword masters in the world, had to make a difficult decision to hand over his apprentice, Ruby, to the Demon Master when Ruby's real identity as a descendant of Demon Sovereign was revealed. Three years later, Ruby who had successfully taken the reign of the Demon Realm, came back to take revenge on her master that had betrayed and abandoned her in the hand of cruel demons. Rion swore on his life as a sword master, he only wanted to protect those who were precious to him, but how did it manage to turn the whole world into chaos? How would Rion face his own apprentice in a battle between life and death?!