Yeah, that's from Elder Brother.To be honest, Elder Brother has been forbidden from speaking of this, so...To ensure their love doesn't go cold, he wants to pay for her and accept her as a bride.For a year, he's been exchanging letters with Hatsune-dono.W-w-w-what!?
A love letter!?Hatsune-dono
Hope you're well.
How are you?
I have always...
Rin-donoThis is bad, I'm being bothersome again.
Idiot...!Sorry, I...Master is a guest of Hatsune Onee-san though...Huh ?What ...?