Hi! It has been found in the logs that upon fast drain of your phone, it has been found that it was caused by Twitter and played Harvest Moon. Basically, Twitter has been running on the background all along.
If you are not using it, please close the app or you can follow this steps.
To improve battery life you can add this apps to [always sleeping apps] list. ([Settings]->[Device maintenance]->[Battery]->[always sleeping apps])
