MTL - My Spy Years - ~ Thanks for the summary (asking for a monthly ticket (holding fists))

Cho Ryu Hyang was good at math from a young age. When he enrolled into the The Theoretical Maths and Martial Arts School, the teacher, Jo Gi Chun, recognized Cho Ryu Hyang’s talent immediately and took him in.

Liu Fang, a manager, died suddenly at work due to being too diligent.
She thought that she would turn into a wisp of dust and dissipate after her death, but she never imagined that – the new century, the new underworld, even if she became a soul, she would still be a worker!

Liu Fang has become a newcomer to the underworld Quick transmigration Department. In order to wait for a good reincarnation, she strived to accumulate merit and traveled into one world after another to repair the way of heaven.

- Description from Novelupdates

This novel is also known as The World Is A Wasteland: I Obtained A Top Tier Shelter

The meteorite destroyed the world, and the global people traveled to the wasteland world!

The monstrous flood, the ice age, the advent of alien beasts, the plant plague…

Under the random disaster once every seven days, if you want to survive, you must build a higher-level shelter!

Lin Yue awakened the 100% treasure chest system, and since then he has opened up a completely different style of painting from others.

Others: “The explosion rate of the treasure chest is too low? I still haven’t killed fifty mutant creatures!”

Lin Yue: “There are too many boxes and there is no room in the inventory. Do I have to upgrade the shelter to build a warehouse? Oh, it’s so annoying.”

- Description from novelbuddy

In a universe where the great experts can reincarnate, Yale Roanmad reincarnated with almost no memories of his past life and didn't know who he was.

Despite the problem with his memories, Yale had obtained a strange legacy from his own past life the Last Wish System.

Yale, who remembered the pain of dying, decided to turn strong to avoid suffering the same pain again. Moreover, he also decided to investigate his own past life to remember who he was.

However, he didn't know that a Mysterious Expert, who knew a lot about him and his past life, was looking at him from the shadows.
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There is a channel to report errors there, I might not see your reports if you put it in the comment section because I am not getting notified when people comment.

This novel has been completed. I will still go back to edit old chapters whenever I have time. The prequel will be released soon!

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There is a Wikia under construction. If you want to help, you are welcome: https://last-wish-system.wikia.com/wiki/Last_Wish_System_Wiki

Some 3D characters based on the novel characters, be aware of spoilers if you aren't up-to-date: https://hub.vroid.com/users/10577572