My wife, who works part-time at a factory in the city, recently told me that she was asked by her co-worker Mrs. Watanabe to participate as a tester for a new "sleep aid app" being developed by an acquaintance's smartphone application company. The app, imported from overseas, has reportedly been gaining significant attention among users. I casually laughed it off, thinking she'd get paid and everything would be fine. But apparently, she was told she only needed to pretend to be affected by it. At first, my wife went about it normally, but what followed quickly spiraled into something far more complicated than I ever expected.