I'm an NPC, but I Help Players Fight Monsters

Ordinary girl Bai Yue has just transmigrated into the interstellar era when she collides head-on with an out-of-control spaceship. When she opens her eyes again, she's in a medical pod. Before she can celebrate surviving, the doctor hands her a bill with seven digits. Even worse, if she can't pay it off, she'll be sent to a desolate planet to work as a laborer for fifty years. By a twist of fate, she becomes a special merchant in a horror game, paying off her debt with points earned from players. And so a fluffy little shopkeeper appears in the horror game. When players hear that the latest game update has introduced a random merchant selling items, they say, “Items? Not a chance. We beat the game with our brains. The game isn't getting a cent out of us. Anyone who buys anything is a dog!” In the Five Years of Exams, Three Years of Practice dungeon, players are driven to the brink of insanity by the questions. Get even one answer wrong, and you're out. The orange cat shopkeeper strolls over, smiling at the players. She takes a pencil with tooth marks on it from her backpack. “Meow~ Want one?” Players who buy the item discover that the pencil writes by itself, lights up automatically in the dark, and won't be detected by ghosts. In the Mask Village dungeon, masks are everywhere, trying to ensnare people's minds. Just as all the players fall into an illusion, Bai Yue breaks through it by force and looks at them with a faint smile, nine tails curled around an assortment of items. “Buy an item and I'll help you clear the game~” With the help of a goldfish lantern, the players evade the masks' influence and use an apple lantern to drive off the villagers, whose defenses are maxed out. The players who had been shouting that they wouldn't buy anything: “Woof, woof, woof!” “Buy! Buy it all!” Gradually, Bai Yue becomes famous among the players. A player posts online: “How do I find the little shopkeeper quickly?” Someone replies: “Stick close to the top players. They can spot the little shopkeeper at a glance.” Bai Yue fumes: “That's a rumor! A rumor!” Someone reads the post, the corners of his mouth slowly lifting. He leans close to Bai Yue's ear. “Yes, it's a rumor. I'll clear things up tomorrow.” Then he slowly slips an arm around Bai Yue's waist. His gaze darkens and his voice drops low. “No matter what you look like, I'll always find you.” Theme: A horror game's double agent gets her happy ending