After the success of the School Fair concert, Haruki and Ogiso fall in love.  But the two of them still want to include Kazusa just like they have so far.  Kazusa answers by affirming her friendship with Setsuna, and on the surface things continue as before.  And before much time has passed at all, the second semester is over and winter break begins.  Setsuna and Kazusa drag Haruki on a Christmas hot springs vacation, and they enjoy their last big, fun, event.
So, Touma, you're a 
good friend to me, too.
Deshalb, Touma, bist du 
für mich auch eine wichtige Freundin.
Por eso, Touma, también 
eres una amiga importante.
Por eso, Touma, también 
eres una amiga importante.
Então, Touma, você também
é uma ótima amiga para mim.