Sonoko After (Sonogo no Sonoko) is a bonus story featured in one of the Yuki Yuna Artbooks. It takes place directly after the anime and tells the story of Sonoko, once again moving around and making friends with her fellow club mates.
- Concept Designs: Takahiro (Minato Soft)
- Illustrator: BUNBUN
The plot takes place directly after the episode 12 of the anime after Yuna woke up from her coma brought by her using too much of Shinju-sama's power in said episode. The story itself follows a conversation between Togo, Yuna and Sonoko, and them discussing events that happened after the anime's last fight, and future events.