Someday I will boast that I have tried every flavor of Pocky. This dream, however, is far off because there are so many varieties of the brand's cookies dipped in chocolate. This one, the Coffee & Cocoa flavor, is meant to resemble the flavor of a Tiramisu. A chocolate biscuit is dipped in a deep coffee flavored chocolate and the combination is terrific. It's part of a 3-box series depicting schoolgirls.
The most info I could find online is that the set commemorates the end of the Heisei era in Japan. If any readers know more about the set, please let me know!