According to a classmate, system personnel must be on call 24 hours a day. Whenever there is a problem, a group is formed on LINE, and you must deal with it immediately whether you are on vacation, sleeping, or off work (you have to treat the company as your home). When you return to the company, you must review and document the previous day's incidents in an incident report. There are too many forms in the work process, and SPs are exhausted from rushing around handling incidents... This may suit people who like typing and handling paperwork, such as responding appropriately to supervisors. You may spend the entire day writing reports and conducting reviews. My classmate went abroad for a study tour, so I'll ask again if there is anything special to mention.