: Refers to the model's stage name or identifier. This likely refers to a model named Himeka (such as Himeka Araya or other idols using the name) with the "-i" possibly indicating a specific series, photographer, or agency code.
Based on the file prefix and structure, the image belongs to a specific digital set or photobook: gra_himeka-i_024.jpg
: Short for Gravure , a popular style of Japanese commercial photography featuring models in casual wear, swimwear, or lingerie for magazines and photobooks. : Refers to the model's stage name or identifier