my fav "long title song" is probably sound horizon - 生と死を別つ境界の古井戸 (t/l: The Old and Unused Well of the Boundary That Separates Life and Death), and part of what makes it so memorable is that the whole track listing creates the shape of a church so this song HAD to have a long title, structurally
add a skeleton here at some point
9 days ago