Contract marriage: His Sweet Wife and Cutest Twin Babies - Chapter 24

An ordinary (?) grandfather, Choi Chuntaek. In an effort to protect his granddaughter, he started the virtual reality game 'Arkstar.'

Then... he accidentally obtained a legendary class?

It was said that the young lady from the Chi family, who was raised in the countryside and didn't even finish her sophomore year of high school, was brought back home. People were looking forward to seeing her become a laughingstock.

Unexpectedly—

Why did the grandchildren and sons of Kyoto's top prestigious families eagerly join the same class as Chi Gui?

Why did a world-renowned medical expert converse so kindly and familiarly with Chi Gui?

And then there's the ruthless, unapproachable prince of the Fu family, whose demeanor did a complete 180, showing off Chi Gui daily in chat groups?

Others:

“My girlfriend cooks well!”

“My darling plays the piano well!”

Fu Si: “My wife excels at dissecting corpses.”

Crowd: …

Chi Gui: …

These people are so annoying.

[A steel-hard, candid major boss lady X refined but flirty business tycoon]

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

The strongest Hero in history, Nakamoto Keisuke.

He was summoned to another world in the spring at the age of fifteen years old, and when he successfully defeated The Demon King, he was already thirty-two years old. He had finished his role in another world and returned to Japan, but the reality that had been waiting for him was, “Middle school graduate with seventeen years of blank period” label. He couldn’t find a decent job and had no choice but to spend his days working part-time.

Before such a Nakamoto, a beautiful girl who self-proclaimed had come to return the favor, appeared. “I’m the reward for Hero who had defeated Demon King”, said Angelica, a girl who came from another world that persistently tempted Nakamoto to make her his wife. Together with a high school girl who looks like Elsa, his beloved girl that he lost in another world, Nakamoto with his cheats skills got caught in a harem life.