Solid 4, in my opinion. Amazing visuals and the breathing arts are just as nice as the anime. My only problem is the storyline is really short, can be completed in a day (not exaggerating). Plus what do you do after storyline?? Play online matches? If the storyline is that short their gotta be something making up for it except on this game the only thing left is online matches or against bots and fight demons. If it had more to it or a longer storyline than it would be a solid 5.
Recommendations
1. Add season 2 to storyline
2. Add more game modes
3. Maybe add a free world to explore the map? (To be honest I think it would be cool if we could wander around the map and fight demons get more quests to kill demons all over the map, just fulfilling the roll as a demon slayer)
Tbh I think adding any of these could make this game a solid 5
Amazing game! :)
Edit: Possibly add a online map where you can explore and fight?