Looking at how the artist drew the Sanae dakimakura, I'd say that Rikako is on some sort of a flag or a piece of paper attached to a sinsack's head. Idk, it just doesn't look like a daki to me, I may be wrong. :P
Looking at how the artist drew the Sanae dakimakura, I'd say that Rikako is on some sort of a flag or a piece of paper attached to a sinsack's head. Idk, it just doesn't look like a daki to me, I may be wrong. :P