After Being Sold Out By The Empire, I Decide To Assist The Demon King - Chapter 4 - 3 Demon King Satan Ye

After choking to death on a watermelon, Rong Jiahui thought that she would enter the netherworld and be reincarnated.

But when she opened her eyes, she discovered, to her very horror, that she had returned twelve years into the past…

Looking at the beautiful and awkward “little brother” that would be conferred the title of Marshal in the future for outstanding military service, she almost let out a snort of laughter.

She firmly decided to hug the thigh of this little brother, and climb to the top of her life!

The plan was beautiful, but it had just one problem.

Why had this little brother… suddenly turned into…

A little sister…

- Description from Novelupdates

Yoon Eunah was engaged with Lee Young-soo by their parents. But the marriage didn’t go as it was planned.Faced with Eunah’s absence. Eunbi, her younger sister ended up marrying Young-soo against her will to save her parents pride and self-esteem.Neither her’s nor his parents came up with a plan of involving Eunbi and Young-soo into the marriage. It was full and fully planned by Young-soo, he emotionally advice Eunbi by using her family weakness as his strength to get her acceptance to marry him.Eunbi was suspicious of Young-soo’s plans for marrying her whether, did he married her for revenge? (or) did he married her for her wealth? What will happen when Eunbi finds out the real reasons why Young-soo has married her, will she forgive and accept him as her husband and lead a happy life?

A wonderful night, she met a lover of a lifetime.Because of the failure of her family’s business, she has always been looked down upon by others.

Even her fiancé framed her, although they had a good relationship before. On the contrary, he is a well-known rich CEO, with a handsome face and a wealthy family.

There are countless girls who want to marry him. Unexpectedly, they spent a romantic night together.

As they got to know each other better, they began to realize that both of them was the one they had 

The one single goal in life of the Strongest Old Sage is to subjugate the Demon King. In an epic final battle, both of them met their mutual destruction at each other’s hands.

However, the Demon King was not completely destroyed!

In order to destroy the Demon King once and for all; post-death, the Old Sage trains in the World of Gods and reincarnates as the Apostle of the Gods, Will.

In the reincarnated future, the Old Sage had become a legend and his former disciples hold the supreme authority in the world. The disciples had created an organization to oppose the Demon King and an academy to nurture the new generation of Heroes.

Thus the Apostle of the Gods, Will (8 year old), enrols into that Academy of Heroes.

This is the story of a boy on a mission to save the world through epic battles while enjoying Academy life.