|Kanji||佐木竜二 (さき りゅうじ)|
|Manga/Light Novel||Murder Committed by Young Kindaichi|
He appears for the first time in the Murder Committed by Young Kindaichi case, in Chapter 94 (Volume 12, Case 10).
Ryuji is similar to his older brother : he wears glasses, and is always carrying a camcorder recording everything he sees. The main difference, noted by Kindaichi and Miyuki , is that his hairstyle is different from his brother.
He follows Kindachi with his recorder after having a dream of his brother telling him Kindachi would need his help.