战场之花 (Zhànchǎng zhī Huā)

Background
"Zhànchǎng zhī Huā" is an original Luo Tianyi song by Sya. The 4 VOCALOID CHINA concept characters also make an appearance in the PV.

The song is about a soldier (Luo Tianyi) who struggles to survive in the warzone and agonizes over the thought of sacrificing her life on the battleground. Her friends and comrades (Mo Qingxian, Zhiyu moke, Yuezheng Longya) were all killed in battle, leaving her and Yuezheng Ling as the only ones living.

In the end, Tianyi protects Ling from a bomb and dies as a result, leaving Ling by herself.