MTL - Simulation: Starting From Strange Creatures - Chapter 12 ways to speed up cooling

A story in which a woman, after learning that the world would end in ten days, sets out to finish one last thing: murder her ex-girlfriend.

However, she ends up befriending, and spending the world’s final days with, the little sister of her ex-girlfriend instead.

After choking to death on a watermelon, Rong Jiahui thought that she would enter the netherworld and be reincarnated.

But when she opened her eyes, she discovered, to her very horror, that she had returned twelve years into the past…

Looking at the beautiful and awkward “little brother” that would be conferred the title of Marshal in the future for outstanding military service, she almost let out a snort of laughter.

She firmly decided to hug the thigh of this little brother, and climb to the top of her life!

The plan was beautiful, but it had just one problem.

Why had this little brother… suddenly turned into…

A little sister…

- Description from Novelupdates

Claire Reed thought she married the man of her dreams, Evander Kensington, but she had no idea that their marriage was built on a lie; a family vow that trapped him by her side.His heart, however, belonged to another woman, his white lotus.No matter how hard Claire tried to win Evander’s love, he only grew colder, and his family treated her like she didn’t exist.When she lost their unborn child, Claire’s world shattered. She wanted to see Evander, but he didn't bother to check on her. Instead, he went to meet that white lotus.Unable to bear the betrayal, she decided to free Evander from this marriage, leaving behind a letter and divorce papers, claiming she now had someone else she loved!~~~~“You’re mine, and I’ll never let you go!” he declared, his voice dark with possessiveness.“But I don’t want you anymore! You can have Susan—I’m now in love with someone else!” Claire shot back, her words sharp and final.“You can't be with anyone. Do you even know how sleepless nights I've without you?” Evander's hold on her tightened. “I'll see how you become some else when I'll claim you,” he pronounced before crashing his lips on her.

Known as the country’s top onmyoji, Yuuma Kisaragi, who lived to the age of 99, awoke to find himself in an unfamiliar forest. A voice echoed in his mind, revealing that he had been reincarnated into another world at the age of 20.“Good morning, Master. Skip the greetings and please defeat the goblin in front of you.”The voice belonged to a skill acquired during reincarnation called “AI,” designed to assist Yuuma in his new life. When the skill, AI, took over the form of a golden-haired fox yokai, the familiar shape of Yuuma’s shikigami, he decided to embark on a new life alongside AI-chan.The onmyoji and AI-chan’s second life began, tackling various challenges and formidable enemies with the strongest spells and shikigami.