Lisa is Lapitch's girlfriend, an orphan mouse along with her parrot Pico came from a circus whose ringmaster mistreated them and left them behind. She's very supportive kind and sympathetic towards Lapitch and cares deeply for him and she helps him out with his shoe rounds from time to time. It is revealed that she is the lost child of Lapitch's master and his wife. Ever since then, Lisa lives alongside with Lapitch in everyday's new adventures (as seen in its 'sequel' TV series in 2003), which her personality is now even more upbeat than ever before (sometimes she can be pretty tough, too!).