Lost (or realy unpopular) Hatsune Miku song?

I heard about vocaloid when I was 5. When i was around.....7 (?) I asked my mom to download some vocaloid songs on my pc. Soooo almost 7 years passed from that moment and today I decided to see what songs my mom downloaded. There were a lot of Wowaka's songs and other catchy songs like "ALICE iN BLACK MARKET" that I saw for the first time, but i noticed one song that got my attention. I couldn't find nothing about it on internet. Audiofile name was "Sakura Ka/Sakura Uta" and thats the song's title I guess. I dont know if I can post songs or audiofiles here, so please, let me know if you know something about the song!