A prankster who sleeps with a smiley face when his girlfriend isn't home. (Aozora Hikaru, STARS-289)

My girlfriend, Mai, is a college student who works at the same part-time job as me. Her friend Hikari works there too, and the three of us are very close in our private lives. One day, I invited them to my house for a party, and when we were all drunk, Hikari mischievously started to seduce me…