If all page-names are the same as before and after of your work, copy and paste the following content to your .htaccess.
RainbowLink Inc. ( 株式会社レインボーリンク )
RainbowLink Inc.
https://www.Rainbow-Link.com/
Sep 21, 2018 (JST) | redirect | https://www.rainbow-link.com/marketing_article22.htm
RainbowLink Inc. ( 株式会社レインボーリンク )
RainbowLink Inc.
https://www.Rainbow-Link.com/