Not Worth The Risk.

3,333 days is a little more than nine years of constant hard work and danger in the green forest. But working every day is unlikely.

It is likely that hunters will take breaks sometimes to rest. And even if they don't take breaks, they might fail to kill their preferred target and have to return with a weaker beast or no beasts at all.

There is also the danger of the forest. There is no way that they can hunt for 3,333 days straight and not encounter danger.

So one decade is a reasonable estimate of the time that another person at the seventh transformation of the first mortal coil will need to reach the fourth hunter's grade. It can even take twice as long as that.

But for him, it will take at most a year of hunting. This one year is only because he is taking his time with hunting and is only hunting once daily.