Robot maker, Kronos Heaven, finally develops "Night Tenjo", the perfect male humanoid programmed to be devoted and completely loyal to his lover. The company chooses temp worker Izawa Riko to take part in a 5-day free trial. At first, Riko only sees Night as a household appliance. But when she finds out how deep Night's devotion to herself is, Riko finds herself falling in love with him. Joining the love triangle is Asamoto Soshi, a distinguished young executive at her company who has feelings for her.


Cast
# Hayami Mokomichi as Tenjo Night
# Mizushima Hiro as Asamoto Soshi
# Aibu Saki as Izawa Riiko
# Sasai Eisuke as Shirasagi Yuki
# Ueno Natsuhi as Ito Mika
# Satoi Kenta as Hirata Hajime
# Nekoze Tsubaki as Adachi Kyoko
# Komoto Maki as Sato Nozomi
# Kaji Masaki as Tanaka Yoichiro
# Yamada Meikyo as Asamoto Shiro
# Minemura Rie as Yoshioka Tetsuko
# Erena as Ono Chiho
# Sakuragi Ryosuke as Morikawa Yasushi
# Watanuki Shoichi as Dei Takeru
# Irie Jingi as Hayashi Kota
# Yamamoto Kei as Asamoto Kazushi
# Nakamura Shunsuke as Asamoto Masashi
# Sasaki Kuranosuke as Namikiri Gaku
# Maya Miki as Wakabayashi Fujiko