I love the Japanese name Riku. It's a good, solid, strong name. I first heard this name from the game Kingdom Hearts, like many others.
― Anonymous User 1/2/2015
3
This strikes me as one of those generic otaku names that Japanese media seems to overuse and weeaboos overuse for their OCs even more. Like Sora, it's probably due to Kingdom Hearts. It also reminds me of those crappy Sora/Riku fanfics that demonize Kairi. Plus, I didn't like Riku that much when I played Kingdom Hearts.
I love the name Riku. It's unique and foreign and it comes from one of my favorite video games. It makes me think of rock or stone without sounding to macho.