However, a cross-reference of the official SOD archives and Japanese database sites (like DMM or JavLibrary) reveals .
As of 2024, the woman who appeared in STAR409 has never been seen again. Her AV career lasted less than 5 months. She is considered one of SOD’s "Holy Grails" of identity protection. star409 risa tachibana av debut akb member takamatsu eri
"Risa Tachibana – AV Debut"