“Shade / Yin / Negative / Sex Organs” in Japanese is 陰, read in, kage (いん, かげ). It is a Jōyō kanji taught in Japanese secondary school (junior & senior high) — the 高手 · Master tier beyond the grade 1–6 Kyōiku set, and appears in words such as 陰気 (gloomy).
What does 陰 mean?
Same sound, different character — the classic trap. Compare them side by side: