Masamune finds a note with the words "Pig's Foot" written on it in his shoe locker, and begins to hyperventilate that someone might know about his past and reveal his true identity. Disturbed, he decides to help Yoshino Koiwai, Aki's personal servant and maid, buy lunch for her mistress and accompany her to see Aki, wanting to find out if she is the unknown person who sent him the note...