SOLVED:Please help me find this japanese songs name and artist

Hello.

Please help me identify this song.

I already tried shazam/snapchat and other apps.

Note that i recorded this song from Wallpaper engine's steam workshop and there was no name of the song or artist in description.
Also that sound is as bad as it sounds from the video + i did not add that video behind it.

Anyways please help!!!

Video link [Y83ji5xz4tY]https://www.youtube.com/watch?v=Y83ji5xz4tY&feature=youtu.be[/video]

Never mind guys this is solved,

Song name is Treasure by ClariS

i got copystriked by Sony Music Japan 20 minutes later and it included all the information.