https://doujinblog.org/190125-%e6%88%af%e7%94%bb-%e3%83%a9%e3%83%96%e3%82%af%e3%83%aa%e3%82%a2-%ef%bc%8dlove-clear%ef%bc%8d-%e5%88%9d%e5%9b%9e%e9%99%90%e5%ae%9a%e7%89%88-original-soundtrack-bonus-update-patch/