September 3rd, 2026
On September 3, the third torn page arrives in a plain white envelope with no return address except a printed strip reading Arc 1, the handwriting almost hers in its long-tailed jeongs.
What happened
On September 3, the third torn page arrives in a plain white envelope with no return address except a printed strip reading Arc 1, the handwriting almost hers in its long-tailed jeongs. The page says she has begun to keep receipts, and Seo-yeon does not yet know which receipts the woman means. At home she opens the drawer and finds the bloodied tooth baggie has been broken open and resealed with a different fold, the tooth still inside but touched by someone else's hand. She photographs the seal under lamplight and labels it BUILDING, then sleeps with the tote locked in the officetel closet. The building knows where she keeps her evidence now.
