Welcome ISAranghae,
In the screenshot provided, it appears that this app is no longer on your device. The icon no longer appears there, which tells us it has been removed.
When we look on our devices, we are unable to see this app listed in Settings > [Your Name] > iCloud. Which also tells us this may be related to a specific app you've purchased in the past.
Does it show up in your purchase history? See more at: View your purchase history for the App Store, iTunes Store, and other Apple media services - Apple Support
On your iPhone, iPad, or iPod touch
1. Open the Settings app.
2. Tap your name, then tap Media & Purchases.
3. Tap View Account. You might be asked to sign in.
4. Tap Purchase History.
5. Your purchase history appears. Tap Last 90 Days, then select a different date range.
Learn what to do if you can't find the item that you’re looking for or if you find unexpected charges.
If not, is this your personal, work, or school device? Could there be a management profile added to this device? This explains more about profiles: Install or remove configuration profiles on iPhone - Apple Support
Hoping this helps out, take care.