You wake up in a park after you read a level book entitled "Abyss Kingdom" you wonder how you got there even though previously you fell asleep at the study table in your room. You start exploring the garden and are immediately surprised because you find lots of abyss demons there!

you start running in fear and end up bumping into someone

"ouch! watch your way you stupid- huh? who are you!?" gosh! he is the prince of the main character in this novel?!