Childhood Sweethearts: He's Jealous Again! - Chapter 11 - : Run Fast

Based on the popular Vocaloid series, by HoneyWorks, called “Kokuhoku Yokou Renshuu (Confession Rehearsal)“:

Natsuki, a third-year at Sakuragaoka High School, who holds unrequited feelings for her childhood friend, Yuu, who’s in the Film Club. However, instead of being honest about her feelings, she makes him be her confession “rehearsal” partner. Unable to say her true feelings, things start to get complicated when Miou and Akari, who are also in the Art Club, get involved! Will she ever be able to confess for real!?

It was the year 2030, in the modern era of humanity. A virtual game was released to the mass public known as Isekai World Online, It blew up in sales and its marketing campaign was extremely successful. People went into the game and enjoyed its play style, even the graphics were realistic. People questioned who made the game, as the company that supposedly created it has never been heard of by anyone, and their location is anonymous, but despite that, people continued to play it. Millions across the world enjoyed it, and its fan base continued to grow.The main character, Lee Kennedy, was one of the first people to play in the game’s beta before it released. He and a handful of players would grind the game and level up the highest they could go. However, everything changed for everyone once they logged back into the game, to realize the true intentions behind this game.For so long, people questioned why it was called Isekai World Online, but now they were bestowed with the truth. Their souls were trapped in the game, abiding by the laws of this new world.____________________________________Warning: Novel has LGBT stuff inside of it, extremely dark scenes, NTR for side characters, and other horrible aspects. If you don’t want a dark story I wouldn’t recommend it.

I returned after 10 years.

Chu Guang, who had traveled to the post-apocalyptic world, discovered that he had unlocked a shelter system and was able to summon creatures named “player” from the previous world.

From that day on, the whole post-apocalyptic world became like a game.