I believe the choices could be cut down by half without affecting much. But I am not so sure about the fully kinetic novel. Mechanics for MC/Miru and MC/Katie have already been introduced. Ocean can avoid introducing more for other characters, but the ones for those 2 need to remain. For Miru it seems to be solo/sharing/pstar/breakup. For Katie love/rival. Idk how they actually work, but they are there. The outcomes for the rest of the girls can even be grouped. Not 1 group(there is to many). Partitioned in 3 maybe.