Honestly the game is very much cute and yet deceptively 'difficult'. Like its not hard but still. My biggest thing is there's gotta be a way to see the sprites without having to grind everything from scratch. Maybe a save feature would help too but I digress. Overall its a fun lil game and if you love cow girls as much as I do, then you'll like it. Personal favorite so far as of right now is Lavinikka for how hekkin BUSTY she gets. Can't wait to see if you add more to this lovely lil game.
So update to my playthrough. Holy CRAP level 6 and onwards is one hell of a difficulty spike. It doesn't help that the enemy team that you have to deal with has pre-buffed abilities like Nectar and Rank 2 Charm. Still haven't gotten past level 7 but it helps that you keep your team that you've bought from previous runs so it doesn't make it as painful.
Last edit for my post since I don't want to be annoying. As far as this build of the game I think level 10 is pretty much impossible. The fact that Kirsca practially floods out Charm by herself makes it very difficult to even match her let alone distract her since she has Allure in her pool. THOUGH I can give a lil guide of how to GET there in the first place so you can see the full size of Krisca in game:
So the name of the game is Distraction. And you'll need the girls Lavinikka, Vanilla, the Invader???, Ms Claire, and the LINCHPIN for it Karamelly. Her unique ability is Seduce, which gives charm if you overdistract the enemy team. Without her this whole shtick will not work. Basically focus on getting her Seduce to rank 2 in order to get the most benefit, have Lavinikka use the Scent abilities to cause distraction and still produce milk, Ms Claire to pump out Charm, and the Invader to be focused on Distraction. Then when you have everything else upgraded, upgrade Vanilla to Moo Rank 2 to push out extra Charm. It helps if you do rank up the gals to level 10 to allow for maximum numbers (if it even applies anything). But yeah. While I personally haven't beaten the game I know some folks wanna see max level Krisca so I hope this helps.
Overall this game is very well made art wise and I hope to see it updated with more girls and enable more build crafting. This game scratches that itch very well.