Haruka Minazuki and Aoi Kannazuki are ordinary schoolgirls at St. Cherine School.
But by night, they transform into the righteous heroines, 'Phantom Thief Angels TwinAngel'!

Balancing school life with their nighttime battles against a massive conspiracy, they work alongside Kurumi Hazuki, Tesla, and Nine to thwart the evil organization The Black Fund.

Though they successfully reclaim the stolen artifact 'Tears of an Angel,' their victory is short-lived.
The artifact is stolen again, leading them on a new adventure where they encounter two unfamiliar Phantom Thief Angels.
Discover the secrets behind the birth of 'TwinAngel' and witness the power of their unwavering bonds.

[From Steam]