Apex domains cannot have CNAME records.
Question and response
Question
dig list-finder.jp. NS
Answer
list-finder.jp. 5 NS ns-1052.awsdns-03.org.
list-finder.jp. 5 NS ns-258.awsdns-32.com.
list-finder.jp. 5 NS ns-783.awsdns-33.net.
list-finder.jp. 5 NS ns-2016.awsdns-60.co.uk.
Authority
The response has no authority records.
Additional
. 0 OPT ; payload 1232, xrcode 0, version 0, flags 0