A Knight’s Tale is the second game from Neverlucky, the developer of Triangle. It’s a very nice and cute game, but not one for those that like games that have twists and lots of drama. This is a sweet, vanilla-ish game with plenty of lewd stuff and a story that involves intrigue and the day-to-day life of a knight. (hence the title!)

Here is the blurb from the developer’s Patreon page describing the game.
A Knight’s Tale is an adult Visual Novel created in Ren’Py. You play as a knight in a fictional medieval kingdom. You live in a castle together with your beautiful wife Cathy and the cute servant girl Lydia. One day you are called to the capital where you meet a young girl called Alice, daughter of your former teacher. She becomes your squire, and together you will go on many adventures as you train her to one day become a knight herself. Your love life will get a lot more adventurous as you start developing feelings for not only Alice but Lydia as well. Can this lead to a happy end for you? And what will Cathy do about this? Come and find out!
Neverlucky – The developer of A Knight’s Tale