Soul is a 15 year old girl, who discovers that she is a "Sun Spirit" after her sister, Yue's death. She doesn't quite understand what the term means, but she goes to explore it with the Avatar and his friends in the adventure of Avatar the Last Airbender.

❝𝐘𝐨𝐮'𝐥𝐥 𝐫𝐞𝐠𝐫𝐞𝐭 𝐥𝐞𝐚𝐯𝐢𝐧𝐠 𝐦𝐲 𝐬𝐢𝐝𝐞. 𝐈 𝐬𝐡𝐨𝐮𝐥𝐝 𝐧𝐞𝐯𝐞𝐫 𝐡𝐚𝐯𝐞 𝐭𝐫𝐮𝐬𝐭𝐞𝐝 𝐲𝐨𝐮.❞ ❝𝐘𝐨𝐮'𝐫𝐞 𝐫𝐢𝐠𝐡𝐭. 𝐘𝐨𝐮 𝐬𝐡𝐨𝐮𝐥𝐝𝐧'𝐭 𝐡𝐚𝐯𝐞 𝐭𝐫𝐮𝐬𝐭𝐞𝐝 𝐦𝐞.❞ 𝙄𝙣 𝙬𝙝𝙞𝙘𝙝 𝙩𝙝𝙚 𝙁𝙞𝙧𝙚 𝙉𝙖𝙩𝙞𝙤𝙣 𝙜𝙞𝙧𝙡 𝙛𝙖𝙡𝙡𝙨 𝙛𝙤𝙧 𝙩𝙝𝙚 𝙒𝙖𝙩𝙚𝙧 𝙏𝙧𝙞𝙗𝙚 𝙗𝙤𝙮 -{No AU}- 𝙎𝙤𝙠𝙠𝙖 𝙭 𝙁𝙚𝙢 𝙧𝙚𝙖𝙙𝙚𝙧