Not a festive New Year message at all.
To sum up, it is... Where did Touko go in the middle two years, and why did he not come back.
"Obviously only two years have passed, but she feels like she has forgotten everything. She has forgotten her travels and growth, and she has forgotten the thrilling battle scenes. Everything before that flew out of her mind like the last sayonara. She stretched out her hand towards the white feathers melting in the air, but she caught nothing."
Intention: