Nine years ago, photographer Cho Sei Hon started the "Letters From Angels" project, which featured celebrities with orphan babies celebrating their 100th day. (In Korea, a baby's 100th day is celebrated as a special time in a newborn's life; historically, it meant the baby had survived the most vulnerable period of infancy which used to be marked with a high death rate.) The project is a domestic campaign to encourage adoption within Korea, and it can be considered a successful one -- 90% of the babies featured in Cho's exhibitions have since been adopted.