С 4chan.

<Anonymous> https://www.youtube.com/watch?v=a1EOP4-R9SA
<Anonymous> What language is it? lyrics please
<Anonymous> Looks japanese.
<Anonymous> Yes, it's japanese, here's the lyrics.

Warusunegurou jitsun tooyuu ratou ne
Nazo gorobori kurujitsu
He to nouwagousu wo korosutari tooru
Nori zanaki supeshitsu
Norigozou jotsu tarine wo toori
Na wa shigureta purosuchitou saa
Mouji ni ta daruzu onperii wa ryoku sujibiisutora nitsu

Sunegi ne supeshi riku toropite sa
Sunegi ne te wa zari chikaku meshita
Zante ratebiru takune isukuritsu
Muarupou ka sunegu~ ritai

Warusunegurou jitsun tooyuu ratou ne
Nazo gorobori kurujitsu
He to nouwagousu wo korosutari tooru
Nori zanaki supeshitsu
Norigozou jotsu tarine wo toori
Na wa shigureta purosuchitou saa
Mouji ni ta daruzu onperii wa ryoku sujibiisutora nitsu