Their back story:ever since chibis they have had each other's back and always sworn to protect each other except one time when Sandusky was hurt so bad Montenegro kept saying 'I sworn to protect you I failed sandy' Sandusky would always reply 'No didn't Monty just if I die promise to Stay alive for both of us' Montenegro was glad sandy didn't die because they are inseparable except to there liking of who they do like because Montenegro is one to push and train like Germany while Sandusky is one to Swear to protect only her family and work harder when protecting other times she is a laid back person.
