Game released on 9/12, so I am a bit late to this post! The sale applies to both Switch and Steam, with both ending on 9/26. The Nintendo eShop also provides a sale end time: 02:59 a.m. EDT.
Steam
Nintendo eShop (US)
Nintendo eShop (United Kingdom)
According to the otomekitten review, the localization was done well, which I am relieved about. I think when I originally posted about this game on the kbin.run otome community (the community that came before this one and went down when the instance kbin.run went down), I noticed a mistake on the official website that made me worry about localization, so I'm happy to hear it was well done. But people might want to be warned about this:
Unlike your usual otome visual novel, this game does not branch from a common route to individual love interest routes. Instead, the game is very linear and follows only one story path. This means all the dates happen within the main storyline. So, if you want to experience it as if you’re playing one specific route at a time, you’ll need to carefully choose the options that lead to certain date scenarios with the guy you prefer. Otherwise, the heroine will jump from one love interest to another in each chapter.
This happens because this is a straight port of a mobile game, where certain scenarios were paywalled, which is likely how the guys were separated out—just pay for the ones you want to see. This game removed the paywalls (and thank goodness, paywalls in a game you already paid for would feel bad) but judging by the review it did not restructure requirements to see certain scenes. Not sure if this will come off as her falling in love with all the guys people, or if it will feel like it was intended to be one at a time and that some of the scenes you see were not intended to be shown to you at that time. The otomekitten review says it feels like she's three-timing. If that's your thing in fiction, more power to you, but I figured I'd toss a warning 1) for those who do not want it and 2) I feel people who would be into legit loving multiple people and people who would be into a more deceptive three-timing thing would want it to feel like the story actually intends that to be happening, and not like an unintentional byproduct of just removing paywalls form a mobile game. I have a feeling it will feel like that unintentional byproduct, though of course I could be wrong.