If you are wondering how long it takes to beat Monster Hunter Stories 2, the exact time would be something along the lines of 45 to 50 hours. This estimate is based on that of the previous game in the series, which the site How Long to Beat estimated to have an average playtime of 49 hours.
This time also includes the main story campaign but doesn't account for extra content, and if you were to also complete extra content, the hours would shoot up past 50 hours.
That said, the hours from the previous Monster Hunter Stories shouldn't deviate that much in the second game, and you should manage to get anywhere from 45 to 50 hours of total playtime.
However, these hours can vary depending on your own personal playstyle and how long you play the game, so you could be seeing even more hours out of the game.
What is Monster Hunter Stories 2?
Monster Hunter Stories 2 is a sequel to the first game of the Monster Hunter Stories series. The game is a turn-based RPG and also follows the story of a young rider who must stop a legendary Rathalos who will wreak havoc. The game will also feature, monster taming, quests both main and side, along with numerous RPG skill systems.
For more on Monster Hunter Stories 2, check out both How to farm for bottle caps in Monster Hunter Stories 2: Wings of Ruin and All Attack Types Weaknesses and Counters in Monster Hunter Stories 2: Wings of Ruin