Joon-soo is a tough 18 year old high school kid that loves to cause trouble. He often gets in fights, once with 17 other guys, but always comes out as the victor. Then one day Joon-soo's parents decides to go out of town. Joon-soo decides then and there to throw a party at his parent's home. He then goes shopping for groceries and comes upon an unexpected surprise. A little toddler sits in a shopping basket wearing the name tag "Han Wooram" and points to Joon-soo as his father!