The Mikuni Detective Agency has been hired as bodyguards to protect a rich man's only daughter. Despite her being difficult, they were going through with their mission.
Nice to meet you, Kiyoko-chan. 
You can just call me Kou.
Schön dich kennenzulernen, Kiyoko-chan. 
Du kannst mich Kou nennen.
Gusto en conocerte, Kiyoko-chan.
Encantado, Kiyoko-chan.
Enchanté, Kiyoko.
É um prazer, Kiyoko.
Você pode me chamar Kou.