Iron Mask (2023)

Jae-woo, who was selected in the survival process to enter the final entry of the national kendo team, meets Tae-su there, who killed Jae-woo's older brother when he was young. He faces Tae-su as a competitor but Tae-su is invincible. Seeing Tae-su in peace and not being able to outdo him constantly suffocates Jae-woo. He becomes agitated as the training comes to an end and his feeling in his deepest mind starts to burst out.