The Devoted Second Male Lead Decided To Favor Someone Else (sleepytranslations.com)

Lu Shijin transmigrated into a strange world and was bound to a ‘Devoted Side Male Lead’ system. The system required him to wholeheartedly play the role of a side male lead, to selflessly dedicate himself to the main character and to advance the plot development. He would only be able to return to the real world when…