The main heroine of the story is a young, talented Elsa Kellner. She works for the anti-terrorist unit Rainbow Six as an engineer who takes care of their gadgets. One day, she becomes intimately close with her colleague Masaru Enatsu (Echo). Their friendship will soon turn into a friendship with benefits. However, they hide it from the eyes of others. In addition, Elsa's brother's girlfriend is pregnant and it is up to Elsa to help her. Can she combine demanding work with family responsibilities? And can she face her own feelings? ------------------------------- Masaru = Echo Elena = Mira Mark = Mute Yumi = Hibana Siu = Ying James = Smoke Saif = Oryx Lera = Finka Grace = Dokkaebi
10 parts