I saw this great reaction video ... a black guy watching Led Zeppelin's Whole Lotta Love. Well, the song is killer, because it's Led Zeppelin after all, but I don't think the young man realized it was about sex. Kinda cute.
This guy seems entirely genuine to me. Here he has seen a major portion of a Japanese anime franchise already, and then reacts to a crucial bit of music from the earlier TV adaptation that he hasn't seen yet. Because the two series overlap, at least in the first fifth or so of both series before their stories diverge, he has the story context and emotional setting to appreciate this song sung in Russian. The franchise itself has excellent English dubs so there is no battling with Japanese dialog or subtitle reading required to enjoy them. The song is two brothers singing to each other about their tragic stories, guilt, forgiveness, and a little hope.