Lời bài hát Sign (Ano Natsu De Matteru) - OP

Ca sĩ: Ray
Hoho wo sugiru shiokaze kimi wa damatteru dake
Hontou wa sono yokogao furete mitai no ni

Kuchizuketa ki ga shiteta are wa sou, yume no naka
Genjitsu no kyoukai wo kaze ga sarau

Nanigenai kotoba de kagayaki dashita nichijou
Itsuka mita eiga mitai da ne

Kisetsu ga meguri megutte mo bokura wo zutto matteru
Kogeta FILM no you na natsu no kaori
Deatta hi no sora no ao
Nozoita kimi no hitomi
Kitto...
Kesenai yokan ga shita

Kimi no egao hajiketa natsu iro no LENS goshi
Hontou wa motto chikaku de mitsumetai no ni
Yureru kigi no zawameki nakama no warai au koe
Isshun no yuuki jama sarete ima mo ienai

Nozoite mitai na hontou no kimi no kimochi
Kaze no muki ga kawaru mae ni

Risei ni sakarau you ni omoi ga tsuyoku natteku
Taiyou ni yakareta suna no you ni
Mabuta wo tojite mo deau egao ni ishiki tooku naru
Manatsu no sora no shita

Temaneku kimi to shinkirou
Mijikai kisetsu no mannaka de yureta...

Kisetsu ga meguri megutte mo bokura wo zutto matteru
Kogeta FILM no you na natsu no kaori
Uzuite kienai yokan
Nozoita LENS tobikoete
Sono te wo tsukamu kara...