Mae sawa mo naku renai yohou mainichi ga sou special day
Tooriame no you ni yatteki te mune no naka de hibii teru melody
Dokidoki rhythm kizami dashi ta!?
Da yo ne da yo ne kore tte "koi" da yo ne?

Anata ha 'o jama shi masu' mo iwa nai de
Sarige naku atashi no ni rakugaki shi te hashirisatte ku
Seigyo funou ubawa re ta 3d heart

Ichi nen mae kinou mo kyou mo mainichi yappa special day
Daiji sugiru jikan da kara koso kono ichi byou mo ureshii
Ima de mo kawara zu kizan deru
Dakara dakara zutto yoroshiku ne!

Anata ni kotae taku te tsutae taku te
Mainichi kyodai na o todoke taku te itsumo aishi te!
Rakugaki kara tobidashi ta 3d heart

La la 3d heart
La la 3d heart
Be in be in love
So happy happydays?
"dai dai daisuki" tsumatte masu
Fall in fall in love
Chou happy happydays?
Ni nin da kara tokubetsu itsu demo

Anata ha 'o jama shi masu' mo iwa nai de
Sarige naku atashi no? ni rakugaki shi te hashirisatte ku
Hazukashiku te ie nai kara

Run run ring ring ru ru
Kokoro no oku itsu made mo utai tsuduke ta
Run run ring ring ru ru?
Happy happydays owara nai ni nin dake no 3d heart