This poem reflects what I think about Setsuna mind will be during this events. The characters do not belong to me and all belong to Kaori Yuki.

A loud explosion
blared my ears,deafen
The agony pierced in silence
right through in defiance

Why do all have to die
sacrificing their life
just for a mere fool
like me

How many have died
yet near end
they never regret
loyalty smeared their heart

Witnessing all this
make me feel depress
just for my selfishness
all this happens

My heart are chained
with this everlasting guilt
The pain is killing me
taking my life each second

this events is locked
so tightly in my mind
As I am here kneeling
I just felt like dying

Nothing could deny
the painful truth
Down to the root,
It's all my fault.