Here is a write-up on Pack and the works mentioned in your query.
This is the standard short form/nickname for the name Daria. Pack - Little Angel aka Angel- Daria Angel- Das...
"Little Angel" is one of Pack’s most recognized solo tracks. It encapsulates the "Glitch/Cloud Rap" sound that defined the SoundCloud rap era of the late 2010s. Here is a write-up on Pack and the