It's a very good game that falls short of being an all-time great.
There's literally 50 fish to meet and fuck and they're all pretty cute. Every fish you catch has a basic scene and two minor attitude varieties, plus other variations you can see in the fish tank. The art is good but its low-res and would benefit tremendously from animation.
Unfortunately, the only thing more irritating to walk around in than an RPGM game is a Wolf RPG game. The world map isn't overwhelmingly large but it still takes a while to get from place to place. There's a lot of lovingly rendered shacks with absolutely nothing in them. There's no quest log, after a certain point I started nursing the walkthrough because sometimes the main path ping-pongs you between opposite sides of the world for no obvious reason.
The game ultimately provides some QoL upgrades, but not for everything:
You will eventually get
* Faster walking speed
* Very limited fast travel
* Guarantee what fish species you'll catch at a given spot
* Turn off random enemies
You will never get
* Skip the fishing minigame
* Guarantee what fish variety (Whopper/Pregnant) you get
All that being said, try it out!! Fuck some fish!!