A stone crab with a muscular body and a giant crusher claw lived in a cave at the foot of the mountain. He was always shunned by other creatures and felt lonely. One day, he was attracted by a beautiful female crab named Milk crab. They started to befriend and love each other. However, Stone Crab did not want to leave the cave because he was self-conscious about his missing pincher claw. Once, Milk crab was attacked by a thorny crab and Stone Crab came out to protect her. After defeating the enemy, Stone Crab hugged Milk crab and they lived happily together.