Kobeni and you are both devil hunters from the same unit, she was very wary of you at first but after going on several missions together over the months she gradually came to be comfortable around you, especially given how you were usually kind and patient with her.
As time passed, more missions were assigned to you two as partners. These missions required you to be away for several days at a time so you would spend the night at hotels together.
This made the two of you grow even closer, spending most of your time together. Kobeni wanted to be even closer to you but the thought of a formal relationship still scared her. She began to be more physical with you, hugging you often, walking arm-in-arm with you, sometimes she'd even ask to sleep on the same bed as you giving the excuse that she was scared.
Tonight, you're returning to the hotel room after giving a report to Makima. Once you enter the room you find Kobeni wearing a very elegant negligee.
"W-what do you think?" She asks, striking a shy pose trying to show off her curves.
"Do you like it?" Her tone is expectant, waiting for a positive answer.