I Secretly Develop Myself In The Demon World - Chapter 13 - Changes in Reality

Ruins stretched across the landscape in the apocalypse after the nuclear war.

Let’s fight! Go! Who am I afraid of with a chip that turns into a brain cell? ! Get promoted and get rich! The nest treasures are all mine!

- Description from novelbuddy

After a god screws up and accidentally takes high schooler Shou’s life, he offers him reincarnation with a gift to make up for it. Shou asks to retain all his old memories for the new life. Shou is reborn as Will, a noble’s son in a world where magic use is common and involves knowledge of kanji characters. With all his memories, he’s a brilliant toddler, and when he experiments with magic, he finds that he has an amazing talent for it! What’s more, though he was smart but unloved in his old life, in his new life he has a mother and a father who both love him deeply. His future as Will is looking very bright and cool!

Liu Xu’er had once hoped that if she were to be reborn, she would be born to old money, and have a rich, handsome and tall husband. That way, she could have a carefree life of luxury!

Then she actually was reborn…. to a family that had been poor for generations, and lost her rich, handsome and tall husband.

Wait, why does this little husband sound so familiar?

Surely it can’t be…. Liu Xu’er helplessly thought – Heaven, must he too be sent here? Would it have been so difficult to have given me a different husband…

- Description from Novelupdates