In what year was the album “oath sign” released by LiSA?

In what year was the album “oath sign” released by LiSA?: The album “oath sign” was released in 2011 by LiSA, featuring 4 tracks.
What is the most successful song from the album “oath sign” by LiSA?: “confidence driver” is the biggest hit from the album “oath sign” by LiSA.

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