Dianxia Qing Cheng

The ruthless prime minister's icy heart was melted by the naive and sincere prince! He believed himself powerful enough to keep the prince in his hands forever, however... The brokenhearted prince left him so easily! “Where are you?! Without you, I can never be happy in this lifetime. Your Highness, where must I go to find you?!”

(Source: Bilibili Comics)