The scene where Zach gives special breakfast happens before the deal is made (which confused me, what deal was he talking about all along).

Also, once you get all the “upgrades”, the shop becomes useless. How about adding an option to buy a hint to unlocking a random achievement not yet unlocked?

Edit:

• “You have to try very hard”, the to is missing.
• Not a typo, but a suggestion. When MC tells Sarah that they can’t get pregnant anyway after the surprise night with Zach, may be if by that point MC has progressed and acquired a womb, an internal monologue right after, something like “well… probably?..” or something along those lines, or an alternative dialogue all together would be appropriate?