character: bokuto_koutarou, Full body shot from a low angle of Bokuto Koutarou standing at the sandy shore of a beach, preparing for a swim. He is a muscular young man with spiked two-tone grey and black hair and bright yellow eyes, wearing only a traditional white fundoshi loincloth. He is stretching his muscles with a joyful, energetic expression, his arms raised and hands interlaced behind his head to stretch his chest and torso. The background features the glistening shoreline where gentle white waves lap against the golden sand, under a clear, bright summer sky. The lighting is brilliant and natural, with a vivid color palette of turquoise ocean water and golden sunlight, creating a bright, high-energy, and refreshing atmosphere in a high-quality anime illustration style.
