|Ryoko Achakura (あちゃくらりょうこ)|
|Occupation||Data Overmind humanoid interface|
|Introduced In||Nyoron Churuya-san|
|Last Appearance||The Melancholy of Haruhi-chan Suzumiya|
|Voiced by||Natsuko Kuwatani (JP) Bridget Hoffman (EN)|
She also appeared in The Melancholy of Haruhi-chan Suzumiya, transforming from her original self to a chibi after being defeated by Yuki Nagato. She failed to kill Kyon once again thanks to a hungry cat that tries to eat her.
She would later become friends with Kimidori, a balloon animal made sentient by Nagato.
In the manga version, she has demonstrated retained powers, but Kimidori became worried because she seemed to shrink every time she used them, to the point where she might disappear forever.
- Achakura's relationship with Yuki has parallels to the relationship between Sgt. Frog characters Sgt. Keroro and Natsumi Hinata. Both Ryoko and Keroro are forced to do chores around the home, and both Yuki and Natsumi are school students. However, due to Yuki's personality, she keeps Ryoko in line with fun and food, while Natsumi resorts to violence, insults, and other such actions.