"Oh." Frisk feels...well, they feel a little sheepish. They're having all this trouble delineating between themselves and Chara, and Souji's been dealing with this for how long, for how many different people? "I...I didn't realize."

They feel absurdly like apologizing, like they've crossed some sort of line. But Souji offered the information freely, didn't he?

"How does that...work?"