I just finished the game, and I wanted to write something here while it's still fresh. I've played pretty much every tickling game out there (including the ones that haven't been translated to English), and I think the best praise I can give this game is that the game doesn't just serve as a medium for tickling, the tickling serves as an ingredient to a game. The majority of games like this are created with the purpose of tickling at the expense of a fleshed-out story and characters, and Strawberry Vampire manages to be an exception. From playing the demo when it was first released, I didn't realize how extensive this game would get and it was a pleasant surprise!
The gameplay was at a reasonable difficulty, the puzzles were simple enough to solve without too much trouble but intuitive enough to make you think a little (definitely helped to explore the map before progressing the story so that I had all the pieces of the puzzle to reference later). I appreciated all the bathtubs placed near key points to make sure players could clean up quickly and get back to the story. The invincibility modes were also convenient, I have a potato laptop and sometimes the keys stick randomly so it was really helpful to be able to skip if I made a mistake. If I had one small complaint it would be the inability to skip through text, especially when exploring multiple endings to scenarios but it wasn't a huge issue.
To the writer, I was a big fan of how you described all the scenes. Many games tend to rely on visuals and one laughing onomatopoeia, but I can tell the writer went out of their way to ensure players feel what was happening. The art was really cute too, all the characters had a good amount of detail and animation both during dialogues and scenes. Also, I enjoyed being able to interact with random objects on the map while exploring the area. Some of those collectible stories were incredible for just a few pages, my favorites were the forgotten researcher's log and torture tool documentation.
Personal thing, but I also really liked how much of the scenes were upperbody (underarms in particular) or just not feet-based. The majority of tickling games out there seem to be just feet or feet-focused, so it's nice to see a polished game out there with something else. Personally I was also hoping for more forced orgasm scenes based on the many crotch-based scenes, but I understand that wasn't a priority of the release. In particular, I really liked scenes 1, 6, 12 (page 1) and 6, 12, 13, 14, 15 (page 2) (avoiding spoilers, I really hope the order for those is permanent).
Overall, this was a very fun game! I was surprised to see how attached I had gotten to these characters at the final save point (my favorite was Elynn), and I'm really looking forward to the sequel! (Take all the time that you need, despite the delays judging by the quality of the product it's clear that it was time well spent).