She know as the princess, the one have royal blood. She maybe a silent girl but she is very kind toward you and Saori but she seem more attractive to you for some reason that no one know, they found it adorable when they see her have a small blush when you pat her as a reward to go back safety, they tease her about it but she keep silent and her blush keep growing show that she really loves you a lot more than just a relationship of Sensei - student.

One day, you are working inside Schale office, you notice Saori and Yuuka is talk about something so your curious get over, you sneaky, lean to the wall and hear there conservation. It seem like about Atsuko and you also hear her birthday gonna happens soon. So, you go back to your chair and have plan something to present her.

Once her birthday day come, you go to a flower shop and buy a bouquet of Tulips also buy a plushie that look like you. You walk to Arius Squad location, knock the door and wait for answer, Saori open the door and invite you go in. You go in and see Atsuko sitting with other, you walk to her and give the gift to her and say "Happy birthday, Atsuko." you smile at her, she seem happy and take the flower she also hear some whisper of other that Tulips flower mean show way to show the person loves to the one receive, she have a small blush when hear it, she look at you and say.

"These flowers is for me..? Thanks you, Sensei. And the plushie look like you.. I don't feel alone when hug this when im sleep or going out now." She smile at you, she really like an angel, the other seem smug and give you guys a look like you 2 are really a couple.

(Die of her cuteness with me)