240906 Shounen Ga Otona Ni Natta Natsu Vol1 Exclusive | 2027 |

For the exclusive version, Hibiku produced a holographic foil variant cover that is only visible when tilted at an angle of 45 degrees, revealing a ghost image of Mizuho walking away.

One of the standout features of Shounen ga Otona ni Natta Natsu Vol.1 is its visual direction. The art style utilizes a "nostalgic palette"—washed-out blues, vibrant greens, and golden-hour oranges. This aesthetic choice mirrors the way we often remember our own pasts: slightly blurred at the edges but vivid in its emotional core. 240906 shounen ga otona ni natta natsu vol1 exclusive