TLDR – A good harem game that has loads of content, but unfortunately shows its age in places.
Mythic Manor is a sandbox harem game with a morning-afternoon-night cycle. The girls will be in different locations at different times and if you talk to them at the right time to advance their storyline. The in game hint system is actually decent, but I played using the walkthrough and suspect most others do as well. Grinding is there, but it isn't terrible.
There's five main girls, but their storylines are independent so you can ignore them if you want. All of the plots are slice of life stuff with very little drama going on. Despite the low-stakes the paths kept my interest and the 'payoff' felt good. The writing is serviceable.
There are problems through.
While the models still hold up fairly well, a lot of the animations are simple and old fashioned. The developer is going back and updating them, but with so much legacy content to cover its a fresh coat of paint not a renovation. There's some scene composition problems as well. Honeyselect's male models are notoriously bad and the MC is no exception, but he shows up on camera with unfortunate regularity in the smut scenes.
The writing has issues as well. The 'MC' is a blank slate even by porn game standards. While the girls start out with distinctive personalities, two of them quickly converge as their storylines go on. And the dialogue falls down in places.
Still enjoyable, although not one of the top tier in 2020.