Set up OpenVPN on Android
Download the config file
Click the link below, and save the "kuins.ovpn" file
Run App
AGREE
Import Profile > Upload File > BROWSE(Grant access to files if requested.)
Select the "Downloads" folder, tap "kuins.ovpn", and tap "OK". (If the filename appears as "kuins.ovpn.txt", rename it to "kuins.ovpn".)
Select "PROFILES"