Solving a Case on My Phone [Infinite Flow]

There's a legend in City B: if you're still on your phone at 12:12 a.m. instead of sleeping, you're likely to run into ghosts. Xue Xinrui, a staunch materialist, scoffed at the idea. Staying up late feels great, and staying up late forever feels even better. ...Then, just as she was having a blast reading a novel, she was forced into her phone, forced to team up with others, and forced to solve cases and find killers every night in all kinds of bizarre scenarios. System: [Collect 10 killers and we'll reward you with 10 more cases, dear. Keep it up!] Everyone else: I'd rather die o(╥﹏╥)o Xue Xinrui: Look, I collected them all again. Give me 10 more! System: [...Are you sure you were forced into this?] An investigation-focused infinite-loop story. Not scary, made up of 20 short stories, with an exceptionally clever and capable male and female lead who make a formidable team. First story: Cinderella's Death. Second story: Murder in a Locked Room on a Cruise Ship. More to come.