End of Part 1

I don't know the exact reason, but I'm playing with 7th Heaven MOD and the End of part 1 achievement is not being achieved.

Here's how to fix it.

Instead of going through 7th Heaven, run FF7 with the Play button on Steam and watch the video that appears after defeating Genoa Life.
However, if you play the game through Steam, there will be no save file.

After entering the settings in Figure 1,
Enter the network in Figure 2 and uncheck Cloud Save (I'm not sure if this part is necessary or not.)
Go to the folder where your 7th Heaven is installed and copy the save file.
In my case, it was the path shown in the picture.

If you still can't find it, go to 7th Heaven On -> Settings -> General Settings -> FF7 Exe next to the path where it's installed.

Then go to the user_Number folder in the Square Enix folder in My Documents,
Paste the save file, and then play the game.
EX) C:\Users\Yours\Documents\Square Enix\FINAL FANTASY VII Steam\user_Number
or Find Square Enix folder

However, I don't know the exact reason, but the save file in My Documents kept getting automatically deleted. So, please check if you have a save file before playing the game and play it.

Picture 5 is the save point right before fighting Genova Life.
There, I loaded and defeated Genova Life and got the End of Part 1 achievement.