Kyou ichiban ureshi katta koto wo kimi ni tsutae tai
Omoi dashi warai shichai sou na koto ima sugu tsutae tai
Omoikkiri doji tte minna ni wara wareta koto mo
Shoo mo nai koto mo donna koto de mo zenbu tsutae tai

Ah moshi mo kimi ga utsu muite genki ga nai toki wa
Tonari de watashi ga zettai wara wasete agerun dakara

Sekai ichi no egao de
Zutto kimi no mama de ite
Zettai akarui mirai zettai shinpai nai
Konkyo no nai jishin wa
Mecha kucha kimi ga suki dakara
Dekinai koto nante nai
So I’m happy when you’re happy

Mune ippai no kono omoi wo
Nante nante kimi ni tsutae you
Sei ippai ooki na koe de
Oh! Happy happy!!
Yeah yeah

Mune ippai no kono ai wo
Nante nante kimi ni tsutae you
Sei ippai ooki na ai de
Oh! Happy happy!!
Yeah

Kyou ichiban ganbatta koto wo kimi ni tsutae tai
Kuya shikute namida ga desou na koto ima sugu tsutae tai

Yossha! Yaruki ni naru toki mo mou dame da tte toki mo
Massaki ni kimi no kao ukabu koto zenbu tsutae tai

Ah itsumo tochuu de kujikete shimai sou na toki mo
Daijoubu da tte zettai hagema shite kurerun dakara

Sekai ichi no kotoba ga mahou kakete kureru kara
Zettai akirame nai zettai muri janai
Konkyo no nai jishin ga
Mecha kucha afurete kuru kara
Dekinai koto nante nai
So I’m happy when you’re happy

Mune ippai no fuan sae mo
Nande nande fuki tobaseru no
Sei ippai ooki na koe de
Oh! Happy happy!!
Yeah yeah

Mune ippai no arigatou wo
Nante nante kimi ni tsutae you
Sei ippai ooki na ai de
Oh! Happy happy!!
Yeah

“I love you” “aishiteru” ijou no
Kotoba wa mou nai no kana?
How much is it? Dore kurai?
Kimochi wa dou shite mo kazoe rarenai

Dakara gyutto daki shimeru no
Dakara tegami mo kaku no
Dakara issho ni warau to
Hitotsu ni naru yeah

Sekai ichi no egao de
Zutto kimi no mama de ite
Zettai akarui mirai zettai shinpai nai
Konkyo no nai jishin wa
Mecha kucha kimi ga suki dakara
Dekinai koto nante nai
So I’m happy when you’re happy

Mune ippai no kono omoi wo
Nante nante kimi ni tsutae you
Sei ippai ooki na koe de
Oh! Happy happy!!
Yeah yeah

Mune ippai no kono ai wo
Nante nante kimi ni tsutae you
Sei ippai ooki na ai de
Oh! Happy happy!!
Yeah

Lalala…
Oh! Happy happy!!
Lalala…
Oh! Happy happy!!
Yeah