This probably needs heavy fixing. ._. I only did it by ear (and from the fuzzy CM clip no less), and I don't understand much Japanese so I don't know how much it makes sense, but a lot of it at least seems not to...I don't know. Read it through and correct as necessary. Maybe we can get a rough translation of the clip...and maybe shed some light on the meaning of the title.
Anyway, here's my attempt:
kantan ni wara karaishi
amaete makari demo nai
watashitachi kiga datta
darake no iingyou dan ka
tadai zora
mono ito to karatte arushi...