C25 Murder to Kill the Heart

Just after midnight, the system alert chimed in.

"Ding! A new day has started. Host, you may now check in."

"Check in."

"Ding! Congratulations, host, on a successful check-in."

"Ding! Congratulations, host, you've earned Mastery in Computing."

Chen Zhixuan's mind was quickly filled with computer knowledge. He felt like a computer whiz