I'm guessing it means Pet Lethe, since that's the only Valuable thing in game that goes as high as a SS now-a-days.
Picklessssssssssssssssssssss!~
See more on Know Your Meme
[Guide] Level Planner for Player and Pet Training - http://wlodb.com/topics/13527
[Guide] Ultimate Pet Page - http://wlodb.com/topics/15272