Elf Tensei Kara no Cheat Kenkoku-ki - Chapter 4Book 2: -2: Things Bequeathed by the Father

Always looked down upon by others, Ji Feng gains technology far more advanced than the present, as he discovers its abilities, he begins to walk a path far from ordinary. With X-ray vision allowing his to find jade stones in rocks. With this futuristic technology, Ji Feng accomplishes something no-one can compare to. This is the beginning of a legend.

- Description from Novelupdates

Clarence, a man married into the Murphy family, was disliked by all his in-laws, his wife, and was facing the possible fate of divorce.

All because he was an orphan and was not highly educated.

But in truth, he was actually the young master of one of the wealthiest families in the world.

And one day, he gained a strange ability.

You take up a student career.

Student career upgrade to lv.7

Acquired skills: primary school knowledge, junior high school knowledge, high school knowledge.

You take the college entrance examination,

You got a perfect score.

Your basic occupation has been upgraded to lv.9, and the job transfer system has been activated.

You change jobs to become a scientist, you gain R&D skills

You use research and development skills to get space fortress construction technology

You use R&D skills to gain starship technology.

You are invincible.

- Description from novelbuddy

Traveling to Los Angeles in the 1990s, Roland Allen, who had been beaten by society, thought that he would live an ordinary life in this life, but just when he was about to change careers, reincarnation began——

The number of roles is all determined by default, so they are all related households everywhere?

Sorry, as long as the hoe is swung well, there is no corner that cannot be dug.

- Description from novelbuddy