
PlanB, known off the stage as Hong Junseok, is a South Korean support player currently active in the LCK Challengers League with BRO Challengers. At just 20 years old, he sits in the developmental tier of the world’s most demanding regional ecosystem, the proving ground from which many of League of Legends’ greatest players have graduated. Korea’s Challengers scene is where raw solo-queue prodigies learn to translate individual talent into professional teamplay.
Support is the most selfless role on the map, a position that trades personal glory for the success of teammates. A support like PlanB is responsible for controlling vision, protecting his marksman through the fragile early game, and orchestrating the engages or peels that decide team fights. It is a role of constant communication and split-second judgment, where the difference between a game-winning hook and a throwaway death is measured in fractions of a second. Modern supports must also roam effectively, extending their influence across the map to swing the mid lane and jungle in their team’s favor.
The LCK Challengers League functions as the direct feeder system to the LCK, the league widely regarded as the pinnacle of competitive League of Legends. For BRO Challengers and a young player like PlanB, every match is an audition, a chance to catch the eye of main-roster coaches and prove readiness for the sport’s highest level. The pressure is immense, but so is the opportunity, since Korean organizations actively scout this tier for their next breakout star.
At 20, PlanB is at a formative stage where reputations are still being written. Success in the Korean development scene requires not only mechanical excellence but also the game sense and shot-calling instincts that define elite supports. The habits he builds now will shape whatever comes next in his career.
As an active competitor with youth on his side, PlanB embodies the ambition that fuels Korea’s endless production line of talent. Should he continue to refine his vision control, engage timing, and synergy with his bot lane partner, a promotion to a main LCK roster is a realistic aspiration. For now, he remains a promising support to monitor within the BRO organization and the ever-competitive LCK Challengers landscape.
PlanB (Hong Junseok) is 20 years old, born January 19, 2006.
PlanB currently plays as Support for BRO Challengers in the LCK Challengers.
PlanB is best known for Karma, Nautilus, Rell, Renata Glasc, Thresh.

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