Played through all content for now. Some wishes/ideas for the future:
1) Animated CG-scenes for every new stage. Like, now we have groping, hidden camera in toilet, first sex, no condom sex, balcony. I think that it could be good to add such scene for back alley and for late night play. Also for every future encounter as well.
2) It was said earlier in this thread but drunk sex (with animated CG for the first time) would be nice addition, like alternative path for blackmailing without hidden camera or something like that.
3) cat costume is underwhelming "upgrade", like it adds two scenes on balcony and that's all. Maybe this can be replaced with "cosplay" scenes in general and cat costume can be a part of it, like cat is first and free costume and others could be bought in shop later.
4) fourth "phase" in room with clones feels realy out of place for now. Maybe it should be done like another tatoo upgrade. In this case it could be also used in other places like back alley and balcony. For example, it can be done as fifth upgrade as next stage of degeneration like now one cock isn't enough for Chiho or something like that. And more poses with this.
5) Maybe adding more minigames for part-time work, like each part of day have it's own minigame, as it was in NTR Legend
6) CG-"photos" for every pose would be really nice.
7) more things to buy in shop, sex toys for example, for prolonging corruption, like using toys before actual sex.
8) more anal scenes, for now it's really underused. Plus it can be played as Chiho losing her anal virginity with MC and not with her husband, for extra corruption, as extra event with animated CG at first and with it's own pack of poses later.
9) more unique poses for different situations - some of them are repeating now.
10) multiple endings. can be played out like: bad ending where MC failed at day 30; cheating ending - Chiho fully corrupted before full cuckold meter and husband doesn't know about her having sex with MC (Chiho continues fucking MC behind husband back, can be added impregnation); cuckold ending - full cuckold meter and husband is aware (Chiho fully stops having sex with husband and humilate him or something like that); swinging ending - cuckold meter not full but more than half or like more than 75% and husband is aware (MC and husband both have sex with Chiho, can be added threesomes, also can be added 2 extra endings with impregnation depending on who impregnate her).
11) more scenes and plot with Alice, also her story can be done with limited time - like, MC should corrupt her before she ran away from brothel. But on the other hand her running away from brothel leads to vacant place so at high corruption levels MC could give Chiho to work here part-time at nights or something like that.
12) I really hope that later Lillith will join the fun too, voluntary or being outplayed by MC (or maybe even both), maybe with some secret ending where MC fucks all girls.
13) more lewd free activities for Chiho at her home - for example, when husband is not home and late night activities are opened one of guys from night (or even both, depends on corruption level) can visit her, MC can see it with hidden camera and join them.
14) with previous points 3), 4), 5), 7), 10) and 11) in mind balance and events can be reworked for more gameplay focus, like make things more expensive and work less profitable, also tatoo meter harder or with higher bars, plus Chiho having sex with husband lower cuckold and tatoo meters; but on the other hand using cosplay, photographing Chiho during sex adding extra points to meter, also can be added ability to send husband pictures of sex with Chiho, that added points to cuckold meter. So player should not just do most work at first 30 days and than just grinding meters as it is now (no offence here) but keep attention through all the game until ending.
15) Add Chiho's school photo with pantyshot in photo gallery, it's very hot.
Overall, game is pretty good and have a lot of potential, good luck with it.
P.S. Sorry for bad english, not my native language .