plus i did find a reddit thread about that video i mentioned previously and someone mentioned tha'irun so its probably them... ty i'll mark it as solved
"Track was made by Tha'irun
FR
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POSTER UN EXTRAIT"Trying to find songs that I heard in Japanese radio"
"Track was made by Tha'irun
"Il dit que la musique est écrit par Alexandre Azaria. Contactez-le?