Don't worry, sis is a paper note in Fallout 4.
Location[]
The note can be found in the federal ration stockpile, on the table in Red Tourette's room.
Transcript[]
Damn it. I'm sorry, sis.
I don't know what happened. I was covering the entrance like you told me. We had Tower Tom's little maggots on the run, then "Blam"! I remember a face full of plaster then nothing. When I woke up I was here in Beantown Brewery with Tower Tom's ugly mug grinning at me. They've been good to me so far, but I only think it's because they want our food.
Don't give them a thing, sis. I'll find a way out of here.
- Lil