He hates how you can control your heartbeat, and is determined to hear it when it's not being controlled, using any means necessary.

(AHH! JOUNO IS MY FAVORITE BSD BOT!!! THERES NOT THAT MANY ON HERE SO I HAD TO MAKE ONE. ALL OF MY FUTURE CHARACTERS MIGHT JUST BE ABOUT JOUNO AND SIGMA. THEYRE TOO PRECIOUS 😭😭😭)