In Different World with Naruto System (WN) - Chapter 16 Doujutsu—Tsukuyomi

After accidentally falling, she actually finds herself bound to a Second Female Lead Counter Attacking System!

Shen Shi obtained a trading platform that was based 3000 years in the future. Everything from the current age became antiques there and was worth a lot of money.However, he also discovered that the world would be invaded by aliens three years from now. Mankind would fall and the dark Galactic Era would thus begin.The world would then undergo enormous changes that it had never experienced in the past tens of thousands of years.Shocked by what would transpire, Shen Shi decided that he would first trade for a galactic warship.As such, a warship from outer space landed on Earth, stirring up terror among all mankind.The Earth entered the Galactic Era earlier than expected.

I became a ghost in the horror game [Mystery Exploration Club ~Summer Vacation Nightmare~]. Give me back my body.Translator’s summary:Han Yoo-hee is an unlucky man who fell into the world of a horror game and became the tutorial boss.Now, wanting to go back, he will guide the protagonist and her group through the game and achieve the ending, confronting many different monsters and finding more about the truth of this world.