My Entire Class Was Summoned to Another World except for Me - Chapter 15

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.

Mortal Chapter: In pursuit of immortality, I seek to dominate the world! I, Zhongshan, aim to establish an unparalleled celestial dynasty, gather the world's qi, eliminate personal hindrances, and thus confront the might of heaven. I will create a new world and achieve immortality. One's fate, fortune, Feng Shui, accumulation of yin virtue, and fame are the five key elements! For the sake of immortality, those who cultivate fame and fortune will establish a celestial dynasty and gather the world's qi. Those who accumulate yin virtue will create a holy land and accumulate immeasurable merit. Those who cultivate Feng Shui can communicate with the two worlds of yin and yang and harness the power of heaven and earth. As for those who cultivate fate and fortune, and those who cultivate life, they... Immortal Chapter: Ask the world, who can achieve immortality and eternal life~~~!

Zou Liang, an otaku with a passionate interest in a fighting game came into a world governed by the beast tribes.

There the ones with high martial ability were respected.

Extreme beauties were a little silly.

This guy felt depressed. Such a crazy really could force a civilized people like him to turn crazy!

Scoundrel Zou began his unrestrained and destructive journey in the Beast God Continent.

Rules? There are no rules!

Principles? His actions defined the principles!

Occupations? Occupations were as unimportant as fleeting clouds. What he sought was omnipotence!

In a different world, Zou held the same passion.

This is a story of a nobody becoming the great conqueror—step by step—as a human, filled with touching emotions, explosive anger, and hot blood forever!

- Description from Novelupdates