tatoeba anata ga ite
atashi wa yasashiku nareru toka
atashi ga ite anata ga ite
genki ni nareru toka
tatoeba ganbattetara
DOJI wo fundari shite
atama nadenade toka
karakawaretari toka

omowazu soto ni detaku natte
mae ni mo dondon susumete
kao ga niyakesou ni naru no
koraete... suki kamo

Happy Days Happy Days
anata to futari de
Happy Days Happy Days
te wo tsunaide iru
Happy Days Happy Days
omoide ga todoku you na
Happy Days Happy Days
yume wo mita yo... yume kai!!

tatoeba kidzukeba
kokoro wo yuruseru nakama ga itari shite
nantonaku yoyuu wo moteru you na
yasashiku nareru toka
tatoeba ganbattetara
minna mimamotte kuretari toka
tsurasa mo namida mo kawatte yuku
shunkan

omowazu onaka ga suite kita
hanauta mo dondon kanaderu
sora ga kirei da to omoeru
LaLaLa... ii kamo

Happy Days Happy Days
donna koto demo kitto
Happy Days Happy Days
dekiru you na ki ga suru
Happy Days Happy Days
uta wo utatte irareru you na
Happy Days Happy Days
shiawase ga hoshii naa
donna n' ya nen!

Happy Days Happy Days
hoshi ga ippai no yoru
Happy Days Happy Days
machiawase basho de
Happy Days Happy Days
atashi wa DOKIDOKI no aji
Happy Days Happy Days
anata wa ushiro ni ita
Happy Days Happy Days...