The old version of the first season theme song was having a low volume, later in the old version of the second season theme song, the volume was improved a bit. In the new version of the first season theme song, the volume was same as old version of the second season, but very different from the old version of the first season theme song. In the new version of the second season theme song, the volume was improved, but much different from the old version of the second season theme song.
Mienai kabe ni kakomarete
Iki ga tsumarisou na mainichi
Kimi no yasashii hohoemi dake ga
Mirai e michibiku hikari ni naru
Hoshizora ni te wo nobaseba
Cassiopeia sae mo tsukameta
Hitomi wo tojireba sora datte tobeta
Shounen tachi wa eiyuu datta
Yume ni yabureta shunkan
Ano kuyashisa no naka de
Nagashita namida oboeteru kai?
Omoidoori ni naranakute mo
Jibun rashiku are
Mayowazu ni ikiru tame
Hero ni nare!
I am surrounded by walls that cannot be seen
It's hard to live when I have lost my way like this
Only your kind smile can become the light that guides me to the future
You reach out your hand to the starry sky
Cassiopeia is also within your reach
If you close your eyes, you find yourself flying in the sky
They were our true heroes
That moment when you're hurt by your own dream, the regret that you felt then
Do you still remember the tears that you shed?
Even if you can't think on your own, just be true to yourself
So that you could live without hesitating
Become someone Strong!
Become even Stronger!
Become a hero!