Where is the data stored in the `background` of the chrome extension?

Question

I ran the code below in the background of my chrome extension:

const value = 'value';

chrome.storage.sync.set({key: value}, function() {
  console.log('Value is set to ' + value);
});

chrome.storage.sync.get(['key'], function(result) {
  console.log('Value currently is ' + result.key);
});

The value was saved even after closing and opening the browser. I would like to know where the data was stored and how can I view it using devTools