I Signed in at Marvel and Became the Awesome Magician

Jack accidentally traveled to the Marvel universe and became a mage apprentice in the magical shrine Kamar-taj. While other mage apprentices were training hard, Jack was slacking off. But when everyone else was still drawing circles, Jack was able to draw a complete magic shield. Because Jack woke up the Sign-in System. This enabled him to increase the practice degree of magic without any training! "Ding! You've signed in successfully. Your magic weapon has reached level 5!" "Ding! You've signed in successfully. You have mastered the magic of the transmission door!" "Ding! You've signed in successfully. The practice points of your raggadorr ring have increased 1000!" Supreme mage: why can Jack master so much magic while sleeping every day?