Okay Explain again, Please describe it in point form and separate it as below to make it easier to identify your problem.
1. I didn't find any bugs in the Sharing Sister - Tsukiko & Sawako mission. Perhaps you could report them with graphic evidence here https://itch.io/t/5397838/version-03-bug-reports that explains them fully and concisely.
2. The "Goddess of Time" reset mission was a bug in v.0.3.2.1 and was fixed in v.0.3.3. Hmm... it's not a bug. It's important to note that Tsunade is a direct subordinate of the Arch Lord and was tasked with helping Masuo achieve his goal: changing Hitomi's fate for the better. Therefore, after you have sex with Hitomi in her college past, you'll automatically be transported to timeline 2. You need to ask Aya to change you back to timeline 0 (the real timeline).
3. Divine Petals? You have to have sex with someone you can have sex with. You won't be able to get divine petals right away. You'll need to buy them from the catalog in the truck.
4. Regarding the Nurse Ghost, I don't know what your problem is, but try taking an assistant named Michiko to the Mental Hospital and have her find the ghost room (to save time, try pressing M to speed up time). Once she returns to you, talk to her until a dialogue box appears. This will determine the type of ghost in your current contract. If it's not a Nurse Ghost, go home and return to the Mental Hospital, then repeat the steps. Only then can you capture her until the Nurse Ghost appears. Also, make sure you've completed her mission in the Mental Hospital Timeline 2, and option 1 makes her a real ghost.
5. Tsunade, yesterday, in v.0.3.2.1, I replayed all the missions in the Mental Hospital. I tried buying a book from Tsunade, and it worked. You must have made a mistake in your mission.
6. Regarding the gender overlap between ghosts and site assistants, I didn't experience it in v.0.3.3, because every time I tried to have sex with a site assistant and the ghost appeared, it would detach itself from Masuo to hide.
7. This was a bug that was fixed in v.0.3.3. Jiyon wouldn't trigger while having sex with your assistant. Regarding this, I think I've experienced this before: the mission causes it to disappear because you didn't complete Sunaga's sex quest. Then the next day, the mission doesn't appear. the solution is reset quest.
8. I've never experienced file corruption every time I open or exit the game on my laptop because I never touch the save file except to change the number of god petals, yurei doro, and money. It's important to note that if you enter the wrong number in a particular mission, you will inevitably corrupt the save sequence naturally. If the number is wrong, your entire game will reset automatically.
Other
1. Regarding Sister Misa, there are two options: becoming a ghost (option 1) and option 2 becoming a Sister. If you choose option 2, she will appear after the ghost hunt. In Reiko's Hallway 2. Make sure you're in Timeline 2, as option 2 only appears in Timeline 2, not the actual timeline.
2. The ghost nurse issue hasn't been resolved in your case. I'm confused. I'll try again later to catch it in v.0.3.3 and catch it, why you didn't catch it her. Idk