Huh ?

What ...?

Master is a guest of Hatsune Onee-san though...

Sorry, I...

This is bad, I'm being bothersome again. Idiot...!

Rin-dono

To be honest, Elder Brother has been forbidden from speaking of this, so...

Hatsune-dono Hope you're well. How are you? I have always...

W-w-w-what!? A love letter!?

Yeah, that's from Elder Brother.

For a year, he's been exchanging letters with Hatsune-dono.

To ensure their love doesn't go cold, he wants to pay for her and accept her as a bride.