Elf Tensei Kara no Cheat Kenkoku-ki - Chapter 16Book 4: -1: Blast Furnace

Time travelling from the majestic era after the Recuperation of Reiki, he became Kimura Kazuki, a 16-year-old high school student in Japan, one year before the Reiki Recuperation.

Tentatively, he set out to hone himself to the bone, burning candles at both ends to stockpile resources in preparation for the imminent Recuperation of Reiki. His goal was to be many steps ahead of all humanity when the time comes.

However, it seemed like fate had decided to play a cruel trick on him.

One year later, the Recuperation of Reiki… did not happen as expected.

Fate is weird. Of all the people in the world, why would it select me to send to a different world?

And what is it trying to do? Put up a show by giving me a system? But oh well, what do I care.

The previous owner of this body was a cripple and looked down on, but now I can slap their faces with my system.

Young masters? Get out of my way!

Princes? Geniuses? Oh please. I have a system. That does not mean anything to me.

I know that I am not the greatest. But fate gave me a cheat system, and I am not wasting it.

I am going to do whatever it takes to conquer this world. Fate forced me to do this. It isn’t my fault if I cause some ruin on the way.

The 7-year-old little crybaby met 11-year-old big brother who ran away from home.
[This man became the protector of redemption in his life]

The 16-year-old little dragon fell in love with a 20-year-old big brother.
[It’s a pity that the big brother didn’t recognize him as the little crybaby]

The 23-year-old single father and 27-year-old chief executive meets again.
[This time the little crybaby and his big brother are finally together]

Fortunately we met through hundreds of millions of people, Thank God, for letting us break through many obstacles and get back together again, falling in love with you and being with you again is the greatest fortune in my life.

- Description from Novelupdates

[Dragon Family, prequel to Game of Thrones]

Becoming the one-day crown prince who should have died young, Rhaegar survived tenaciously.

Being sick and weak cannot defeat him, and losing his qualifications as heir cannot make him give up on himself.

Start the explorer mission, search for the lost treasure, and embark on the legendary road of conquering the seven kingdoms.

Explore the Black Death’s Skull: Obtain the dragon’s legacy, fire resistance +50%.

Explore the auspicious white deer: get the blessing of the auspicious beast and make a wish for a long life.

Explore Blackfire and the Dark Sisters: Obtain the King’s Gaze and the Knight’s Oath.

Rhaegar rode the dragon, sat on the Iron Throne, and despised the machinations of all careerists.

Winter is coming, I will ride on the dragon.

- Description from novelbuddy