[IDOL! XIAO x PIANIST! READER] After such a long time of loving 4NEMO, Y/n gets to meet her idols after one of their concerts. But of course, something has to go wrong. Because of the "incident", Xiao ends up with Y/n's number and a promise to do any favors he asks of her. And after Sucrose quits, 4NEMO is left without a pianist. Recalling the fact that Y/n had Xiao give his signature on a music sheet, he figures out what favor she can do for him.

Captured by the harbingers and ruthlessly interrogated. You didn't ask for this. The harbinger that fled was apprehended and is now under the authority of "The Doctor." After being obliged to tend after the interrogated victim, they find that they're very alike. The decision to trust each other is difficult for both of you.

Y/n, a brilliant detective for the Tenryou Commission. Heizou, also a brilliant detective, who just so happens to be paired on a case with you.