The pig is a descendent of Saizou from the anime Peacemaker Kurogane, and is an NPC in Himuragumi, an LJ-based roleplaying game where I was playing Tsubame (until I switched to playing Soujirou).

• 那只小猪是《和平捍卫队铁》里的小猪的后代?而且也是我曾经扮演小燕的网路同人故事里的客串角色（后来我换了人物去当宋次郎）。