@MonMon19 The most likely case is that she leased her pseudonym to Moodyz (the company that produced the AV) because the actress looks like Hoshiai Hikaru.
Kaitou Pink filmed 4 AV under this name. Rina Yoshiguchi also used as her stage name when she starred AVs doesn't related to her past occupation. But in overall, she filmed 4(KP)+1(Rina solo)+12(co-actor). Her stint in AV not so success due to: 1.Her(Rina Yoshiguchi) actually filmed once before she debut as Kaitou Pink, making a lot ppl doubt about her profiles. a hobbyist about AV in china even points out some fact about her agency is notorious about forging actor's profile. 2.She doesn't has an appealing appearance and body. 3.Her skills when performing sex intercourse doesn't good enough. Even though her sounds can rival some VA for adult ACGs.
Above all, she doesn't film any AV after 2014. so we can assume she was retired from AV industry, Kaitou pink doesn't succeed in AV industry.
@PumaHunter No, a expert of AV industry in Taiwan pointed out Kaitou Pink is actually Rina Yoshiguchi. Debuted as amateur actor in an online film distribution.