During 2011, they started a parallel project called Alesia which quickly became the main musical project after Alieson disbanded. Alesia recorded 3 albums until 2012, but they didn't incorporate metal sounds anymore: Espoir (CD, cod. ALSY-0016, released on 01-05-2011), 深紅のイト (CD, cod. ALSY-0019, released on 30-10-2011), and Historia (CD, cod. ALSY-0021, released on 28-10-2012).