白板上的綠色馬克筆畫，描繪了祈禱姿勢的武士

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A realistic photograph of a whiteboard with a highly detailed green dry-erase marker drawing of a samurai with a messy topknot and facial hair, hands clasped in prayer. The character is drawn in a detailed manga sketch style, shown in profile with eyes closed, wearing a traditional kimono with a katana tucked into his belt. To the left of the character, handwritten text in all-caps reads "VAGABOND" with "MUSASHI" written directly below it. The whiteboard has a glossy surface with realistic light reflections and glare on the left side, and a thin metallic frame is visible at the bottom edge, giving the impression of an authentic classroom or office environment.