Himitsu ~Kuro no Chikai~

The fallen angel who lost their wings
Surrendered to a tainted vow
Even the past of loving each other
Was erased by their hands

The wounded lost angel
Wanders the twilight city
Encountering a girl
With beautiful eyes

The moment their eyes met
The pitiful angel fell in love
As forbidden feelings grew
They opened the taboo box

What they sought was hidden behind a smile
The forbidden fruit
For the forbidden love between humans and angels
They destroy everything

If I can live loving you
By discarding this untainted heart
I'll even cut off these wings
And surrender to the devil

The bride dyed in jet black
Laughs with fleeting eyes
Encountering a mysterious boy
At the sacred vow's place

The moment their eyes met
The pitiful girl fell in love
As forbidden feelings grew
They betrayed everything

What they obtained was in their hands
The fruit of desire they longed for
The heat of seeking and stealing
Even defiling
Pure vows

If I erase all the connected past
Into tiny pieces
Regretting to the point of remorse
I'll just drown and fall for you

The sins I kept sipping
Become unspoken wounds and continue to be engraved
The arrows of angry judgment
Pierce the jet black girl

The fallen angel who lost their wings
Released the tainted vow
In exchange for their life
Leaving only one wing
To save the girl

They disappeared

The fallen angel who lost their wings
And the bride dyed in tainted black
Even falling to the depths of the earth
Entwining the wedges of vows
Carrying unforgivable sins

When the fruit of sin splits open
Until the day they meet again