Arashi ga sugita ato ni Kataru ni mo ochite iku
Memai o furihodoite
Ichi ni san de odoridasu
Shi go roku de mo odoridasu Itsu made futari de iru no ka na
Oishiku dekitara itadakimasu
Shiranai mama de mo ii no ka na
Honto no kimochi wa himitsu da yo himitsu da yo
"Su ki yo, anata ga. Koroshi tai hodo"
Doko made fut ari de iru no ka na
Monomane sukiru ga mijuku na no
Tanoshii jikan ga ii no ka na
Honto no kimochi wa himitsu da yo
Himitsu da yo

translate this (japanese) and what do you think it comes from?