Mardelas was started in 2014 as a solo project of Marina Hebiishi, ex-vocalist of Destrose.
[1] The band's debut studio album, titled Mardelas I, was released on April 22, 2015.
[8] Mardelas III, released on May 22, 2019,[9] is a concept album about a widow plotting revenge for her husband's assassination.
[10] In 2021, they released first live video album Mardelas Official Bootleg Vol.1 -Faith in Tomorrow-.
[12] In 2023, they released a single "Snake to the Fire", the first to feature lyrics written entirely in English.