Please Sir. Calculate a Fortune for Me

Chen Shao returned to his hometown and met his grandfather, who gave him a last wish. "Shao'er! You have been setting up a stall for grandpa for three years, and grandpa can't let go of those old friends!" Chen Shao agreed with tears in his eyes. When he was about to return to the city, he awakened a system. "Ding dong! Hexagram system!" "Mission! Relieve the worries of people, ghosts and gods!" "Task triggered: inventory of grandpa's fortune-telling tools!" "Task trigger: Help others!" "Task trigger: fortune telling within three days! Reward: Ancient martial arts!" "Task trigger: At least three failures within a month! Reward: Proficient in arithmetic!" "Mission punishment: bad luck again and again!" Chen Shao was stunned. Is this too exaggerated? Did your last wish become a system? "Sir! Help me with your fortune!" "Okay! Please sit down! What do you want to ask? Ah! Ghost!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.