San (Alpaca)/Relationships

Kyuu
Kyuu is a long time friend of San's. She and San were both friends of Louis while sharing the same cell during their time as raised livestock. After Louis was adopted by Ogma, Kyuu and San have since found ways to survive the Black Market together, and have presumably been friends and companions ever since. Between the two, San is quite friendly, while Kyuu is more standoffish.

Louis
Once San realized Louis was Number 4, he lets his guard down and is very friendly and apologetic towards him and Legoshi. He seems to be grateful to meet his old cellmate buddy in contrast to Kyuu who seemed distrusting, especially with Legoshi.