Run Elsie Jewelria

Run Elise Jewelria is an childhood friend of Lala and the girl version of Ren Elise Jewelria. As Run and Ren are royalty from planet Memorze, they can change gender in mind and body upon triggering a specific stimulus. In their case, a sneeze. Through an accident, Rito kissed Ren. This kiss caused Run to fall in love with Rito, while it caused Ren to further dislike Rito. Run becomes a famous idol who has released several albums. She becomes friends with Kyouko after Run played an antagonist in her show and now are often seen together, even releasing a few albums together. In Chapter 9 of To Love-Ru Darkness, Run and Ren permanently separated into two separate beings after reaching 'adulthood'.