I couldn't believe it was true.

Carla was such a good girl, so I didn't understand why such misfortune would befall her!

I thought of the vows Carla and I made to be together.

At this time, I felt so heartbroken that I couldn't breathe.

Seeing how upset I was, she said to me with a smile, "I really hope to be with you forever. Also, I want to accompany you through every moment, whether we're happy or angry, sad or joyous. It's a pity..."

"Stop talking! You won't leave me."

To help her with treatment, I was determined to raise money for her.

All in all, I owed more than 200 thousand dollars in debt.

But unluckily, she became more and more haggard as time passed.

The doctor also shook his head at me regretfully.

"Eric, I'm already very satisfied to have a boyfriend like you in this life.

"The only person I'm worried about now is my poor sister.

"After I'm gone, she will have no family in this world.

"Upon thinking about her being alone in the future, I... I feel so sad..."

I held Carla's hand tightly and promised while crying, "Don't worry! No matter how much it costs, I will help you care for her and never let her suffer any grievances!"

Carla looked at me and shook her head repeatedly, saying, "Your life has been so miserable because of me. Forget it! I don't want to burden you anymore..."

She was almost dying but still considering me. I was very touched yet sad, assuring her, "Don't worry. I'll definitely treat her as my sister!"

She cried, "Eric, I owe you too much in this life. If there is an afterlife, I will compensate you double!"

At this moment, I couldn't restrain myself and began to relieve my feelings. I hugged her and cried, "Don't talk nonsense. I just want you to live well in this life!"

"In my next life, I will marry you and repay you."

Having finished speaking, Carla let go of her hand.

She closed her eyes and died peacefully.

I cried for a long time.

At the funeral, I saw her sister who was already in college.

To my surprise, Carla's sister, Salie, actually looked exactly like her.

Even though Carla and I spent every day together, I couldn't tell the difference between them.

It was incredible!

Because Carla and her sister had no family, there weren't many people who came to the funeral except a few of her friends.

Salie cried so hard at her sister's funeral that she almost fainted.

A few days later, she moved into my house, leading to embarrassing situations.

I want to say something but don't know how to speak up.

I asked, "You are not twins, but why do you and your sister look so similar?"

Salie shrugged, looking at me and retorting, "How should I know?"

I froze on the spot.

That was right.

Maybe I was thinking too much.

Indeed, even if they were not a twin, they could look similar.

They were related by blood, so there was a probability of this happening.

To fulfill my promise to Carla and take care of her sister, I took the initiative to ask the company for a pay cut and work in the branch.

I went to another place, rented a house, and lived with Salie. Besides, I took the initiative to pay for all of her tuition and daily expenses.

She had no idea of being frugal. Usually, she spent a lot on daily expenses and bought all kinds of brand names without considering our financial situation.

I lived frugally on most occasions, but my salary was still not enough to cover her expenses.

Sometimes, I would persuade her patiently, hoping that she would understand my condition and that her situation was not very good. I wished that she would not spend money lavishly.

She asked me back, "Didn't you promise to take care of me? Isn't this your responsibility? Do you dislike me? Are you going to give up your promise to my sister?"

Every time she asked me this, I would think of Carla.

The feeling in my heart was extremely complicated.

I missed Carla so much.

To fulfill my promise to her and take care of her sister, I had to live frugally and deliver food after work to satisfy her sister's extravagant life.

After becoming a deliverer, I didn't come back until late at night.

During this time, I worked hard.

But when I opened Salie's room, I couldn't see her.

She often went out with her friends until the early hours of the next morning, then came home drunk, without even saying hello to me. She just lay down to sleep and even skipped going to university classes.

I was very angry.

Finally, I couldn't help but get angry with her and scolded her for what she did.

She remained unconcerned. "It's none of your business. What rights do you have to care about me? If you don't like me, you can leave at any time. You are not my brother-in-law, let alone my family. You can't find fault with me!"

I became furious because of her words.

I got drunk alone and ended up lying on the street like a beggar.

After waking up, all I could think about was Carla's last words to me.

I wanted to leave, but I couldn't let Carla down.

So, I could only insist.

Soon, Salie was not satisfied with her current life.

She asked me to rent a better house, thinking that the current house would embarrass her. It made her awkward to bring her classmates to visit the shabby house.

I was heartbroken.

But before we moved to a new house, she said that many of her classmates were learning to drive and buying cars, and she wanted to buy one too.

I couldn't hold it in any longer and seethed with anger. "Do you still know that you are an orphan? You have nothing! My efforts for you are just to fulfill a promise, not an obligation!"

Salie, who used to be lively, cried.

It was the first time she cried in front of me, except at her sister's funeral.

"I knew it! After my sister passed away, I would no longer have any family in this world! No one would truly care about me!"

Her eyes were red as she yelled at me, "You look down on me too, don't you?

"Indeed, I'm an orphan, a bastard who is unwanted and loved by no one!

"Are you satisfied now?"

Later, Salie left the rental house crying.

She didn't go home until midnight.

I was scared while thinking of her, a heartbroken young girl, drifting alone.

Then, I thought of her miserable life experience and her sister's dying wishes.

I was really scared, fearing that she would do something wrong.

Thus, I went out to look for her.

I searched all night but couldn't find anyone.

It wasn't until the third day that I saw her in the rental house.

I was so angry that I slapped her hard.

In my view, she would be dissatisfied with me and yell at me like before.

Unexpectedly, she didn't complain at all. Instead, she hugged me and cried, "I'm sorry. I was wrong. I shouldn't be so willful and shouldn't have ignored your feelings. Can you please forgive me just once? I often dream about Carla these days. She doesn't want us to quarrel, right?"

As she mentioned Carla, I completely softened my heart.

In the end, I managed to borrow money from a friend to help her buy a car.

To satisfy her dignity, I could only work harder day and night.

Suddenly, she seemed to realize something and became much more sensible.

She often prepared meals at home and waited for me to eat. Also, she would ask me whether I was tired from work and even massage my shoulders and feet.

We lived harmoniously later.

The only problem was that she often dressed very sexily and deliberately teased me by asking me if she looked good in that outfit.

What was worse, she was careless and didn't mind her manners. She used to take a shower at night without closing the door.

She even wore a revealing nightgown, showing off her good figure in front of me, and asked me if she was beautiful.

Although I was older than her, I was still a guy in my twenties.

At this age, I had desires. Naturally, I couldn't resist a young and fashionable beauty who was walking around in front of me like this.

I reminded her many times to be careful, but she completely ignored me.

Several times, when I woke up in the middle of the night, I found someone beside me, and it was Salie. She just held me in her arms while sleeping.

I asked her to leave, but she refused, saying that she was scared to sleep alone.

She would often tell me dirty jokes, which made me feel very excited.

Sometimes, I was worried that I would be confused, unable to tell whether she was Carla or Salie.

I was even more afraid that I had done something foolish to her that I shouldn't have done!

But the more I feared something, the more likely it would happen.

After spending half a year with Salie, I realized that I seemed to have fallen in love with her.

I slapped myself hard twice.

On Salie's birthday, she hugged me and said with deep affection, "If it weren't for you, it would be hard for me to live the rest of my life alone after losing my sister.

"Thank you for taking care of me. I know you are infatuated with my sister. If you don't mind, how about treating me as her tonight?"

I was shocked by her words.

The next moment, I pushed her away hard and ran out.

Later, I didn't go home all night.

The next day, when I returned to the rental house, she seemed to have forgotten what happened last night. Everything was the same as before. She even asked me where I had been last night and why I hadn't come back.

But after a year of being with Salie, I still made a mistake.

On my birthday, she bought a cake and white wine and even cooked it herself to celebrate for me.

I praised her cooking skills as being almost as good as her sister's.

She said angrily that her cooking skills were better than her sister's.

On that day, I missed Carla again, and Salie came to my room and slept beside me in the middle of the night.

I was very drunk, and in a daze I mistook her for Carla and had sex with her.

I blamed myself a lot afterwards.

Yet, she didn't mind it, saying that she might have fallen in love with me as much as her sister.

From then on, she became more unscrupulous and often lay in my room.

Feeling helpless, I could only go to her room.

But since we lived under the same roof, I couldn't avoid her completely.

Gradually, I couldn't deceive myself anymore.

Indeed, I had fallen in love with Salie, my girlfriend's sister.

I thought we would continue to live like this, but something awful happened again.

Salie also had the same cancer as her sister.

Luckily, the doctor told me that there was an imported medicine. Two injections could have a high probability of being cured.

However, the injection was very expensive, and each one cost one million.

To raise two million, I kept working day and night.

I also violated company regulations and took private jobs. When I had no work to do, I went out to deliver food.

Even so, it was far from enough.

I decided to sell the house in the city and my ancestral home.

After Salie heard what I said, she gently persuaded me to give up, saying that she had a miserable life like her sister. In her view, I shouldn't give everything to her.

Every time she mentioned her sister, I felt very painful and guilty.

Being in a dilemma for a long time, I willingly sold my ancestral home and my house in the city.

By working hard, I managed to raise two million dollars.

On the day I transferred the money to Salie, I ran into her chatting and laughing with her friends at night while delivering a takeaway.

It turned out that there was no person named Salie in this world. She and Carla were the same person.

To be precise, Carla was the only daughter of a merchant prince.

She was a really rich girl.

She just dated a poor boy like me for fun.

As for her sister, it was a lie she made up in the beginning, and the person never existed.

Later, as her father transferred her to a branch company to be the general manager, she still wanted to play games with me. Thus, she and her friends came up with a story about two sisters.

From beginning to end, she played the role alone.

Only a fool like me could not find that something was off.

Only a fool like me would believe that the two looking similar were poor and had cancer. Even the funeral was faked by Carla and her friends!

Only a fool like me would give up treatment and sacrifice my life!