Nogizaka46 member Kanagawa Saya is marking the release of her first photo book with a live broadcast event. "Suki no Gradation" (Like a Gradient) arrives June 30, with a YouTube livestream kicking off around 8 PM that evening on the group's official channel "Nogizaka Haishin Chuu."

The photo book documents Saya's dream trip to Europe, with the member focusing on capturing candid, unfiltered moments throughout the shoot. The project showcases her against Mediterranean backdrops and various European locations, reflecting her longtime desire to visit the continent.

For fans purchasing through Sony Music Shop on release day, there are exclusive perks: a crease-free B3 poster featuring previously unpublished lingerie photography, and a special card. The card's front displays Saya with a bright smile enjoying the Mediterranean scenery, while the back includes a QR code linking to exclusive video content—a behind-the-scenes look at one of her hobbies, homemade salt bread baking.

The photo book comes in four different cover variants and includes an extensive collection of previously unreleased shots spanning swimwear, lingerie, and lifestyle imagery. Over the past two months, publishers have been gradually releasing preview images to build anticipation, giving fans glimpses of everything from candid beach moments to more intimate studio shots.

Saya's debut photo book represents a significant solo project for the Nogizaka46 member. The livestream event will likely offer fans the chance to see her discuss the project, behind-the-scenes stories, and potentially premiere exclusive content.

Nogizaka46 itself remains one of Japan's most successful idol groups since launching in 2011 as AKB48's official rival unit. The group continues active promotion, recently announcing their latest single and maintaining a packed concert schedule throughout 2026.