Aries is stated be over 100m long:
“ | This was ridiculous to see a monstrous sheep of over one hundred meters as a fawning puppy. Or was it that a cute puppy remained cute even after it grew into a big dog?
Either way, it seemed I just could not dislike him. Even though his form was like this, it was inevitable when skinship was taken to its extreme. "Ha!" I strengthened my arms and lifted Aries up, as if raising a pet up high and tossing it lightly. The enormous sheep danced in the air before hitting the ground, triggering the largest earthquake for today. |
„ |
~ Chapter 17 |
So i assume he is 101 m long.
Method 1[]
Ares mass = (Ares's length/Average sheep's length)^3*Average sheep's mass
Average sheep is 4-6ft long according to this.
So i will take the average of that is is 5ft which is 1.524m.
Average weight of a sheep is 100kg according to this.
Ares mass= (100m/1.524m)^3*100kg=28251733.3772kg
Not really sure if this is correct since before i saw this formula being used with height not length. I will also do it using height.
Method 2[]

Horizontal black line is Aries length which is 518.35px, which is 101m, thus 1px=.1948m
Vertical black line is 316.08px, which is 61.58m
Average sheep's height is .8m according to this.
Ares mass= (61.58m/.8m)^3*100kg=45608846.9359kg
Conclusion[]
Method 1= 28251733.3772kg (Class M)
Method 2= 45608846.9359kg (Class M)
So either way it's Class M.