Thanks for clarifying, my initial thoughts were:
1 - max affection is 100, i only bought a present to iris and her lust is still 10, but the white hair girl has 40 lust, so idk what i did.
2- scenes that appear depends on how the characters is shown, like iris with a pose, and making "lion, cat" pose in the bed
3- bathroom scenes are random, cause there is 2 scenes, but only 1 time it appeared a third one, and after that, it never appeared
4- currently my characters are lv 20, i havent enough time to explore everything, but i only completed some quests, they are not boring to do, as MC uses second spell and hits all enemies.
5- i managed to reach to certain story parts, but the lack of hints is not a problem for me, i see you are cooking a lot, and you deserve all the time to relax and do it without burnouting. "... of hints" gives a replayability to the game, as you need to discover what to do, and thats what sandbox are great, this one dont feel too heavy.
Im happy to see your work, and thanks for clarifying it all