One Piece: King of the World - Chapter 7 - : Does a Celestial Dragon Need a Reason to Kill?

Three Days of Happiness is a novel by Sugaru Miaki, also known as Fafoo. It’s a rewritten version of the story originally posted to 2ch.

The premise of the story revolves around a shop where one can sell away the remaining years of their life, and the consequences of doing so.

“I Say A Little Prayer” is a short related story which was posted along with the novel’s release. It spoils some things about the main story, but nothing major.

A campus bullying incident led Chu Feng to receive a message of Rong Yun’s suicide after ten years.

Rong Yun’s relic is a novel based on him…

At this point, he came to know that Rong Yun had always liked him.

In deep regret, Chu Feng returned back to high school.

This time, he wants to protect Rong Yun, his achievement and let him have a different life.
At first, he only wants to compensate for his mistakes, but he didn’t know when his compensation become’s true love.

- Description from Novelupdates

Jiang Chao Ge, people called him “money hungry Jiang”. Went from a street hooligan to a newly appointed city official. The difficulties he experienced along the way he hid deep inside himself and did not say a word about it. He only wants be blinding in the eyes of everyone from now on.

Who would’ve thought that before he even had the chance to enjoy the wealth and reputation, he inexplicably passed into a different world. Moreover to his bad luck, the first thing he was faced with was being chased down to be killed. He just casually took a worn out rusted old sword to defend himself, why are these country bumpkins who’ve never seen the world chasing him so relentlessly?

In order to get himself a body guard, he tried to summon the ‘animal spirit’ in the sword. In the end, he summoned a devilish brat who rolled his eyes upon seeing someone, who only called him a good for nothing, who bit him whenever he got close. Where was the powerful, first class spirit weapon he was promised?!

No money, no power, no people, life constantly at risk. He couldn’t see the path ahead, nor could he face the fierce tiger behind. Jiang Chao Ge was beaten back into the abyss with one hit. In this unfamiliar world full of thorns, there is only one reason that allowed him to persevere and that is: to go back.

Hence, he was forced to embark on a desperate and risky journey with this devilish brat who he loathed mutually.

- Description from Novelupdates