Tales of the Endless Empire - I need your help (Dont worry nothing bad has happend)

At the age of 16, Bian Yue became an orphan, inheriting a massive fortune from her family and becoming the wealthiest young heiress in Xiangjiang. The Li family, close friends with the Bian family, took pity on her and brought her to their home. Upon first meeting Li Siheng, he approached her past rows of black-suited bodyguards and tenderly offered to take her home, a gesture that would captivate her heart for a lifetime. At 22, Bian Yue managed to marry Li Siheng, but under the dim lights, he, with an indifferent tone, confessed his change of heart. Determined to part gracefully, Bian Yue resolved to give Li Siheng a decent break-up.Xiangjiang's newspapers headline the daily news, reporting that Shen Jin, the head of the Shen family, frequently visits temples due to a terminal illness and is on his deathbed. People applaud behind closed doors, citing his ruthless actions as karma. Seeing this, Bian Yue devises a plan. During a continuous downpour in Xiangjiang, Bian Yue sits in the Shen residence, drenched. In the dim light, she sees the distinctly elegant and captivating Shen Jin and hesitantly proposes marriage, to which he coldly agrees. Their marriage is hastily arranged, stirring public uproar.Meeting Li Siheng again after her marriage, Bian Yue takes shelter from the rain. Li Siheng rushes out of his car and runs to her, desperately holding her hand and pleading for a divorce so he could marry her. That night, Shen Jin, who was abroad, returns instantly upon hearing the news and confronts Bian Yue, who had just come home. Lighting a cigarette, he casts a more enchanting silhouette against the night, kissing her fiercely. He promises that the rainy season in the harbour city will end, and he will also wait for her return home.

I possessed the body of a villain who torments the male protagonist in a tragic story and dies.Before meeting the male protagonist, I managed to endure my miserable life with survival skills and magic.When I finally met the male protagonist:“Get lost.”He bared his teeth like a kitten.But as we got a little closer,“Lila, help me.”I worked hard to take care of this unexpectedly pitiable young master.And then…“Lila, do you love me?”“What?”“I’m asking if you love me.”“…Young Master.”“I love you.”“…”When I was too stunned to respond, he smiled and approached me.“Lila, tell me you love me. If you do, I’ll give you everything I have. Okay?”It seems I raised him too well.The young master I had so carefully raised began to obsess over me.

When Yuan Zhi met Song Jiyun for the first time, Song Jiyun was conspiring with her brother-in-law to take over the family business;

When Yuan Zhi met Song Jiyun for the second time, Song Jiyun was planting and framing others with her breast brother;

When Yuanzhi met Song Jiyun for the third time, Song Jiyun’s breast brother was no longer by her side, but she was winking at his good brother…

Scholars can bear it, but he can’t bear it. Yuan Zhi decided… to feed the tiger with his body, and took Song Jiyun, a demon girl!

- Description from novelbuddy

The second prince has come of age. To celebrate the advent of such an occasion, the search for a suitable bride began. My younger sister was expected to go to the Royal Palace as a candidate. However, despite this, she eloped the day before her departure. I, the older sister she left behind, looked almost exactly like her – so much that we were often mistaken for twins…

One month, right? For just one month, shall I substitute in for my sister?