I can't increase my progress with Karin because I don't know where to interact with her, I already did a shower scene with her, but I don't have enough relationship, and I have no idea how to increase it
Can someone tell me how to open the pond? I don't know how to do it, and without it I won't be able to continue Karin's journey. I also don't understand how to increase her relationship. I can't interact with her anywhere.