(2018/02/18) -chi -i -ki -ku -n -q -tsu -u ra ra rai raku ran raq ratsu re rei reki ren req retsu ri ri richi riki riku rin riq ritsu ro ro roku ron roq rou ru ru rui rya ryaku ryo ryo ryoku ryou ryu ryuu "R" de hajimaru Kanjion wa 30-ko d…