Videogame: I Can Turn Waste Into Treasure - Chapter 4

A story in which a woman, after learning that the world would end in ten days, sets out to finish one last thing: murder her ex-girlfriend.

However, she ends up befriending, and spending the world’s final days with, the little sister of her ex-girlfriend instead.

In the face of Thanos and his crowd of alien warriors, Jerry took out his wand:

“Avada Suomin”, “Shenfeng Wuying”, “Fuchsia”, “All Petrochemical”…

Withdrawing the wand, pressing both hands on the ground, a huge alchemy formation was formed on the ground, and countless gun barrels roared like thunder.

Get up and put your hands together, the Dragon Slayer Profound Magic is activated, “Red Lotus Exploding Thunder Blade!”

…

Traveling through the Marvel universe, Jerry gets a bizarre panel that rewards Little Red Star for doing good deeds.

Consuming Little Red Star can go to other magical worlds to learn magic,

Consuming Little Red Star can also refresh your mind and speed up the efficiency of learning magic.

In order to protect himself and his family, Jerry reluctantly embarked on the path of constantly doing good deeds to earn a little red star, and working hard to study and learn magic.

The protagonist’s three views are upright, not a virgin, no brainless, no system, the panel is only responsible for traversal and refreshing, all magic is acquired by the protagonist through learning, and powerful through research.

- Description from novelbuddy

____this story sets in Japan that developed a little different history from yours.

This is how a Japanese Princess relieves her stress of the day by using the latest VRMMORPG, and while playing the villain there, the first town turns into whirlpool of chaos, smashed the underground organization in one hand and went for a coup. It’s literally a playtime diary of a girl who is called as “Genocider-san”, “Roaming Last Boss”, “A different person plays the game”, “Raid Boss”, “Ruthless”, “Calamity”, and such by the players.