Returning with Memories of Past Lives: Prince Regent Only Loves Me

In the previous life, the second prince mistakenly believed in his childhood sweetheart, and ended up dying with poisoned wine. The only thing he saw was the regent crying and bleeding in front of his tomb. After her rebirth, she refused to marry the prince and tore apart her enemies, but he, who was cold on the outside and hot on the inside, always protected her in the dark.