[With reluctance, he tracks back over to where Rokurou is standing, one hand extended to take the communication device from him. Once surrendered, Sasuke navigates the settings he had taught himself shortly after disembarking from the train station — and swiftly he is able to input his own username in the system. A few quick taps store it in the memory system. Then he hands it back.]

Here.

[Surfacing the phone in his own pocket, Sasuke sends a message to one Rokurou Rangetsu. Or, as he soon notices, wheremysword. No hint of humor shows on his face when he sees the username, despite its ridiculousness.

His message is perfunctory: This is Uchiha Sasuke. The notification chimes from the device in Rokurou's hand.] You don't need to respond to it, but if there is anything you need to communicate in the future, you'll contact this name. [He taps the screen where his own username is displayed.] I'll receive it wherever I am. Practice first, if you need to.

[A frown mars Sasuke's lips, pulling his mouth down in a well-worn curve. He supposes there is no way to refuse.]

... I'll take a blanket.