keyboard Chinese, and Japanese Virus

It is not a virus and also does not mean anything is wrong with your iPhone. This is a part of iOS and is normal whether you use that keyboard or not. Many times simply doing a Force Restart will make it go away for a while:

Force restart iPhone - Apple Support

Vicam wrote:

I have formatted the two devices, deleted ICloud backup and made new one and the virus still there :(

The keyboard data backup item is normal and not doing anything harmful to your device.

Keyboard Data ( Chinese & Japanese ) - Apple Community

Vicam Said:

"Hello guys, I got virus on my iPad pro and my iPhone, I have done everything possible format, delete back up, restart, nothing work still there as app in make keyboard Chinese, and Japanese! Anyone know how to remove it pls?"

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Thank you for the screenshot.

New iCloud Session:

There is no virus on your iPhone. I'm not certain where to go with this. It would seem you need to log out of iCloud, and then log bake in. Looking at all items in your screenshot, "No Data" is shown, inferring none of this is stored in iCloud. So, click "Turn Off and Delete from iCloud" and then log back in.

I have the same issue with that Chinese keyboard app and follows me everywhere too i cant get rid of it apple doesnt do anything to help i gave up