優しさの理由 (Off Vocal)

ChouCho (previously ちょうちょ) is a Japanese singer from Osaka. She was signed by Lantis in 2011 and made her major debut with the single カワルミライ ("Kawaru Mirai"). Prior to 2011, she was well-known for uploading song covers to the video sharing site Niconico Douga. Read more on Last.fm