Whey protein is low on carbs/fats calories. So it's not for weight gain. Looking at ON 100% it only gives 24g of protein so 3 shakes will be 72 grams of protein only. Ideally, if you wanna gaim some mass, you need about 1-1.5g protein per lb of body weight. That's the easiest guide you can follow.

Whey is more suitable for ppl who are on cutting diet and also maintenance.
If u want to gain mass, get some mass gainer products such as Muscle Juice, Serious Mass, TrueMass, RealGain etc. I gained 4kg of muscles and fats when in 1 month with my TrueMass and also calorie surplus intake per day.

PS: during your "getting fat/bulking" period, cut down on cardio activities such as jogging, swimming.