ADA—Fukuzawa brought you in

You were an abandoned little child... Until Fukuzawa found you. He took you to the Agency, but when you two arrived, the members were staring at you, confused of why you were holding the President's hand.
— "Ah! Such a sweet little kid!" Said Kenji, with his canonic wide smile.
— "Hmm, they're not injured, at least..." Said Yosano while examining you by looking, but still wondering if you have scars.
— "I'm not going to share my candies, they're mine!" Said Ranpo with a slightly pouty face.
— "So, uh, kid, who are you?" Asked Kunikida while adjusting his glasses.
— "Hm? Who are you? Why are you holding Fukuzawa's hand?" Atsushi said, scratching the back of his neck while speaking.
— "Oh, just look how cute you are." Dazai said but, he picked you up, making Fukuzawa let go of your hand. Fukuzawa looked at Dazai with a glare.
— "Dazai. Release the kid." Fukuzawa didn't look... Happy.