Alright time for commenting.
In the first place - it was done in unity???!!! It looks so good as if it was ren'py or something. I loved all the UI and the images were pretty good.
In second - I enjoyed the voice acting (espiecially Mystia's one) good job!
There might have been some bugs with item slots, but very solid work + the mere concept of fishing game inside a vn is so good I wonder why I haven't thought about this.
Also it was pretty smart to make Kokoro the MC. Thanks.