In 2017, the debut album Selective depression in chase of the Big Bang was self released. One year later, in 2018, the second album .existence was released. This release marked a new beginning for Once Upon A Winter, signing a contract with the Finnish label Snow Wave Records.
In 2018, the live line-up of Once Upon A Winter was assembled, consisting of:
Ilias Kakanis - Guitars, Vocals
Angelos Athanasiadis - Guitars
Fotis Sitaras - Bass
Konstantinos Noulas - Drums
Nick Taras - Keyboards
Since then, the band performed as a support act for God is An Astronaut in their hometown, Thessaloniki, as well as in other Greek cities.