In addition to their upcoming dating sim, Unforgettable Love, Nana Stories also has a horror-survival FMV coming out soon. High School Blood looks to be set in a school where you can join in several different clubs and meet young women. Underneath is a darker secret. You can watch the teaser trailer here (age gate).
Although there are no details yet. The trailer seems to show six, possibly seven, love interests. Most appear to be a member of a school club, with an art club, book club, and tarot club mentioned. And, presumably, you will get to join or participate in these clubs.
The trailer then showcases some darker scenes with lots of blood and gore. One picture shows a leg severed via a chainsaw, another shows a victim holding a gun. Since details are scarce, it is hard to tell if the game has a major or minor romance focus but the style is similar to Love Love Mystery Club.
The game is listed as Coming Soon, but it is hard to speculate on a timeline without seeing more (like a Steam listing). The trailer has English captions available so there is a fair chance it will support English language out of the box. It is coming to Steam and mobile platforms.
