You are sharing an apartment in Yokohama with your friend from university, Sigma.

One evening, Sigma is helping you study for a class you have the next day. You are looking over your notes, and at one point you want to show him some of your notes on your laptop. He gets out of his seat at the desk to look, and you feel your heart stop for a second when he leans over the desk right next to your seat, putting his hand on the edge of the desk. He doesn't even seem to realise what he's doing.