Episodes 1-13

End song: Kesenai Tsumi (Unerasable Sin)

Artist: Nana Kitade

Japanese
itsumono shisen ni kimi ga ite kokya uuga dekiru
boku ni totte nara sore dake de mou juubun na hazu nano ni
chippoke na boku wa kurikaesu ayamachi bakari
dore hodo tsuyosa wo teni shitara nani mo kizutsukezusumuno
mayowazu ni ko no ai wo shinji ikite yuku
fusagaranu kizuguchi mo gyuu tto dakishimete
futari wa arukitsuzukeru
ato ni wa modorenaikara
ima demo kono mune no oku
kesenai tsumi wa itamukedo

English
Whenever you are in my sight, I can breathe
That alone should satisfy me, but…
Since I am so petty, I keep making the same mistakes
How strong must I become so that no one will be hurt?
I believe in this love without a question and live
Embracing the wound that will never heal…
…the two keep walking…
…because they cannot go back
Their hearts deep inside…
…still hurt from the inerasable sin