Sense Data

Sense Data is a minor character in Stella Glow.

Seldom appearing in the events of the game and a character of little involvement, Sense Data is an enigmatic individual who acts as a sort of observer to the story.

Prologue
"'Now, let us begin... With your very own story...'" "- The unidentified narrator" Sense Data speaks at the start of Day 1 during the Prologue (as if narrating), musing that the [player's] story has begun. She speaks a second time after Alto and Lisette meet Hilda, stating that it is "time to tell the story of the moon and stars."

Chapter 2 - The Windy Hills
"'If I had to guess, I'd say that you've lost your way in life.'" "- The unidentified narrator" Sense Data appears for the first time in Lambert, approaching Alto in its city streets. After introducing herself, Sense Data hands him the Destiny Clock and advises him to form bonds with his allies.

Epilogue
After a long absence, Sense Data appears once more in the closing moments of the game. In an empty black void, she refers to an unknown individual (whose voice heavily resembles Marie and Eve's).

She commends the player for completing the game, though she hints at the possibility of another ending where everyone survives; that being the True Ending.