All the secret doors have opened.

Sota Yukimura (Hokuto Matsumura), of the secondary brand division at the cosmetics company "Nose Cosmetics," risked his life to rescue his boss, Mariko Nose (Sae Okazaki), after she was abducted by serial kidnapper Satoru Hatano (Yoji Tanaka). Upon realizing that Sota had also saved her life twenty-five years ago, Mariko kisses him... "Please tell me the truth. What have you been doing behind the scenes all this time?" Confronted by Mariko, Sota resigns himself to the situation and reveals everything he has done over the past twenty-five years to protect her. He confesses to exposing the misconduct of Tsuyoshi Tateiwa (Tomomi Maruyama)—who had been plotting to bring Mariko down—and to threatening her stepmother, Sayuri (Miki Mizuno), who had been trying to oust her from the company... Sota struggles to find the words, speaking with a heart-wrenching sense of anguish, much like a sinner confessing his transgressions... What verdict will Mariko pass on Sota after hearing it all? Meanwhile, Gota Asai (Atom Shukugawa)—a secretary at Nose Cosmetics who had been hospitalized after being attacked by Hatano—regains consciousness. When Mariko and her father, Ginjiro Nose (Ken Ishiguro), rush to his side, Asai apologizes profusely, saying, "I am so sorry." He blames himself for putting Sota and Mariko in danger by revealing information about Sota to Hatano. However, Ginjiro interjects, "It was all my fault..." Ginjiro admits that he is the one who brought about everything—from the serial kidnappings Hatano committed twenty-five years ago to the recent attacks on Sota and Asai—and finally reveals the history of his connection to Hatano... Furthermore, the secret held by Sota's best friend, Tomoya Sagara (Akihisa Shiono)... and the truth behind the death of Mariko's biological mother, Kyoko...!? Just before the finale—the secrets of the past twenty-five years are finally revealed!