Beauty, She Can't Help but Be Weak

Before her rebirth, she was Su Lengli, a descendant of the God of War. She was a genius and unmatched by anyone. After rebirth, she transformed into a sickly and delicate girl. She used to be able to bleed no matter how much she was cut with a knife, but now her face bursts into tears when she gets a cut, her lips are pale, and she could faint at any time. Even so, as long as she is alive, she will liquidate all her enemies one by one. ** Male protagonist os: The person I love is dead, and I will never like anyone else again. What happened to this weakling? Did she think she could confuse this young master with this method? Oh! So delicious. ** 1V1+Su Susu+try hard to find logic but don't mind if you get disconnected+just lie flat and let the teasings go.