You could always just read the product page for yourself, it has most of this information. Anyway, yes, the entire plot revolves around the fact that Ayaka is the protagonist’s mother; he barely sees her himself as she’s a successful, hyper-competent businesswoman with little time for either him or his father.
Again, you could just play the trial to know this but basically Ayaka is an effortlessly charming lesbian with many ‘pets’ already, the protagonist accidentally stumbles upon one of her trysts and after showing some backbone to her for the first time, she decides to punish him. The main heroine is his childhood sweetheart with one of those relationships where they’re essentially already dating but he’s too scared to risk actually confessing to her; there’s also his gyaru childhood friend who also loves him, his homeroom teacher with a male fiancee, and his childhood friend’s mother. The dev’s vocal selling points have always been lesbian netorare and no reversal, there are a few scenes with the protagonist, but every heroine becomes lesbian by the end.
The reason I say I like antagonists like Ayaka is because I really enjoy the hopelessness of a villain who all but completely outclasses the protagonist. Here, his mother is successful, aggressive, and totally in control; and the feeling of the scenes where she flirts openly and aggressively with the heroines is something very rare in netorare content, it also helps that she's entirely cruel, which is something I always enjoy.
