Toaru Majutsu no Index SS - Volume 2, Chapter 18: Worthy of Carrying On That Name. The First Friday of October.

Fate is a funny thing.

Song Yu, an up and coming architect was supposed to be the fiancée to the second son of the Qi Family… until her family went bankrupt. The engagement was called off and she finally has the freedom to love whoever she wants to! Years later, a twist of fate made her cross paths with the Qi family again. In order to land a prestigious architect role in an upcoming hotel construction project, she had to impress the director of Qilin. Follow Song Yu as she navigates through life and love!

- Description from Novelupdates

When the apocalypse’s greatest villain self-detonated to destroy the world, Shen Qingjia died and was reborn a month after Doomsday. No power, no gold finger, no space, no way to gather food, just opened her eyes and not long after has to face fierce zombies!! What kind of non-mainstream rebirth is this ah?!

Escaping, she met a cute girl with a beautiful voice but found that she was the villain who killed everyone. For the sake of the peaceful and sustainable development of all mankind and her own safety, Shen Qingjia decided… to relentlessly reform (fall down with) her! !

Shen Qingjia, “What you want to do?! I don’t like girls… Don’t suddenly rush over!… So soft, I won’t accept, ah ah!!!”

- Description from Novelupdates

Liu Ming, since he was young, lived in a savage prison named Savage Island where the prisoners aren’t controlled by any guard or security. When the island sinks due to “mysterious” events, only a handful of people survive – those survivors are then pursued by the government.

On the other hand at another place two practitioners are worrying about what will happen to them because the young master that they were supposed to protect had died.

Their young master looks nearly like our MC
What will happen?