“My son is kidnapped!” Private banker Koichi Anno (Toshiaki Karasawa) is contacted by Saori Tenguji (Anna Tsuchiya), the eldest daughter of the family. Koichi, along with his assistants Kumuiko Iida (Honami Suzuki) and Mikoshiba (Shuhei Uesugi), immediately heads towards Saori’s mother and vice president of Tenguji Aina Group, Mikoto Tenguji (Mari Natsuki). The one who kidnapped Saori’s son, Kaito Tenguji (Eito Kawahara) was Mikoto.

Mikoto wants to adopt Kaito, her grandson, as an inheritance measure, but her true motive was to thoroughly educate Kaito and raise him to be a leader. Mikoto sends Koichi to obtain Saori and her husband, Hiroki Tenguji’s (Hiroshi Tamaki) consent for the adoption.