Rui Kotori Yu, whose gap between the two is so great that she only shows it when it's just the two of them, and her derelicte appearance is unforgettable, began distributing "Rui Kotori Yu: Donguri-no-Seppuku (Root of the Dragonfly)" today!

Rui Kotori Yu's digital photo collection, which has received a great response since its appearance in the all-suite gravure magazine "Zero Fumi STRiKE! Rui Kotoriyu's "Acorn Back to Back", the 58th in the STRiKE! digital photo book series, began to be distributed sequentially on August 30 (Fri.).

A firm older sister and a pampered younger sister. The sisters are too opposite, but they get along very well with each other. The only thing they have in common is that they love me, their older brother, so much that when they are alone with me, they both transform into the same adorable little sister. They are cute little sisters, and that's a problem. This is a story about my sister.

Rui Kotoyu is the white-colored member of the idol group #BaBaBaBambi. Enjoy the gap between her serious and firm character who does everything quickly and efficiently, and her dereliction of duty that she only shows when the two of them are alone together. Also included is a special two-shot photo with Hinano Himeno, who collaborated on "Zero Fumi STRiKE!