I just finished reading abt Xiang Yu's life. So I guess the MV will portray Xiang Yu's entrapment by the Han soldiers in the Battle of Gaixia. When most of his own soldiers left, he composed the Song of Gaixia (the bgm of his mv teaser) for his wife who later took her own life. +

Xiang Yu and few of his soldiers managed to escape but thousands of Han troops were still after them. Battle here, battle there. Until in the end, he was left alone. Refusing to surrender, he also took his own life. Xiang Yu is a legendary warlord and Yixing's favorite hero.

Btw, Xiang Yu was around 30 years old while his wife, Consort Yu was 16.

Xiang Yu marched to Gaixia to save her captured wife but by the time they reached her, they were too far deep into the canyon to retreat, thus the entrapment. And the reason why she took her life

The Song of Gaixia

My strength plucked up the hills,
My might shadowed the world;
But the times were against me,
And Dapple runs no more;
When Dapple runs no more,
What then can I do?
Ah, Yu, my Yu,
What will your fate be?

Dapple - trans for his horse's name Zhui
Yu - his wife