The Beta Tester's System

One day after coming home from work, Alex a below-average guy opens his computer, and does his usual routine checking messages, scrolls through several wikis and sereval other things Alex about to turn off his computer receives an email Alex opens it, the message read [Would you become a beta tester] With Alex's only options being [yes/no] buttons, Alex not caring for it all, clicks the yes option, and up pops out a message [Are you sure] This time not being a pop-up on his computer but as some sort of message from a video game After clicking the [Yes] button, the message quickly disappeared and reappeared with [Select a preferable time period] ******* Sorry if words are mispronounced or bad grammar as this is my first webnovel