Apocalyptic Disaster: I'm a Necromancer

[System + lighthearted + no self-sacrificing saint + natural disasters + sweet romance + food]

Blurb One:

Xi Youyou transmigrated into a book. The good news was that the game she'd been playing came with her. The bad news was that she didn't exist in the book.

After sitting on the toilet and thinking it over, she decided to head to the protagonists' base and enjoy the perks.

Just as she was mowing everyone down with a single chopstick and, after overcoming a series of difficulties (not really), burst through the building's front doors...

[Oh wow!] Mom, there's an Ultraman here!

When Jiang Feng saw the girl in a school uniform in front of him, he stared at the chopstick in her hand for a few seconds, then suddenly gave a wicked smile and pulled a magic wand from the back of his pants.

[Gryffindor!]

Blurb Two:

One woman can fret all she wants, two women can put on a show, and three women can charge into the apocalypse.

Contestant Number One: She has the script of a leading lady, a spiritual spring pocket dimension, and a light-type power rarer than one in ten thousand. Ever since she was reborn, she's been picking fights with the world, the ground, and even the air. Tired of juggling all those men, she left behind the man destined to be her hero and ran off with Contestant Number Three...

Contestant Number Two: The queen of snark, and a Plants vs. Zombies champion. Because she's afraid of men, she also ran off with Contestant Number Three...

Contestant Number Three: Xi Youyou, who comes with a necromancer System interface. She brought her younger siblings along and originally planned to settle down and retire at the base, but Contestants One and Two dragged her off with them...

Jiang Feng: ??? Where's my wife? Where did my wife go?