Ken rescues the waitress Ji-hae Yu from the Galgi Gang, but the battle is far from over. After the crew is made painfully aware of just how weak they really are, Tae-soo proposes they seclude themselves on a mountain to undergo training. The training they are put through, however, is far more hellish than the five could have ever imagined.As the days turn into months, Ken's longing to see Yumin again and his eagerness to face off against the Galgi Gang only grow stronger...Sun-Ken Rock is a gritty and raw action-drama by Boichi, the renowned artist behind Dr. STONE! This cult classic combines explosive artwork with powerful storytelling and makes its English debut in a must-have edition.