...

When the bat sage is paralyzed by my seal and no matter how much he tries he can't move… so I just smile sweetly at him and say… I have already put his memories back in place...

"I am afraid that you won't be able to move…"

He just looked at me and noticed who I was… the one who he was trying to sneak attack but failed. Then with my smile still on my face I say to him…

"I have put some seals on all of the Bats in here… that if they disobey they will just simply… DIE… so… I wanted to offer you all to become my summon animals…"

He just looks at me and then with a neutral voice says…

"What happens if I refuse."

I just raise my eyebrow in a questioning look and say…

"Well obviously you will die."

He just looks as if he has given up and then he says…

"So not much of a choice is it."

Then with my same still on my face I just say to him…

"Well if you choose death you won't have to serve me and teach me ALL of your techniques… and also better not try to hide anything… the last creature on this swamp that tried it… let's just say that it disappeared… and the leech was quite submissive at first too…"

As soon as I say that… I noticed that the Bat noticed what I was trying to convey… and said…

"Yes I accept the deal… the Bats shall always be in service to you and your bloodline till the end of time."

I just nod at him and smile a little… I see… he said my bloodline also so… they will most likely try something in the future… but by then… I will either be so far out of their reach that they won't even think of such possibilities…

….

And just like that after two hours I had their whole Bat summon clan under my thumb to summon any of them whenever I like… then I look at all of them bowing before me… they don't know that… with just a thought I could obliterate their whole clan… even if someone is new is born from them and they might think that the newborn is free… WRONG… the newborn also has a seal automatically made into his brain… just in case..

…

Then after that I traveled while flying on the back of one of the bats as it was taking me to the Mosquito Sage… and with my little army of bats following me… 

…

When I arrive at her territory I see thousands or maybe millions of small mosquitoes… apparently the mosquito Sage is a single person controlling all of the mosquitoes in the Blood Swamp also... the mosquitoes in here are all the same size as normal mosquitoes...

When I start going forward and thinking if I should just burn all of the mosquitoes…  the horde of millions of them split in half to reveal someone that I have never seen in reality but I have seen it from the memories of the summons under me… I also know of all of her powers…

When I look at her I see that she is a tall and large woman and has the appearance of a humanoid mosquito. 

Her body is very light, allowing her to fly, and her limbs have been enlarged and have clawed tips on them. Her biceps and shins are covered in long bristles and stripes which are akined to that of a mosquito. She has long hair and a human-like face but other than that, her head resembles that of a mosquito with a second pair of compound eyes, two antennas, and a large stinger on her forehead.

Wow… she really does look like a part human… that is… gross…

Anyway I start walking towards her… she just says to me…

"I give up… and accept to be on your service."

I just look at her and a smile comes into my face and then with a happy voice I say…

"Hmmm is that so… ok then I accept… give me your summon scroll."

"I also admit that I used mosquitoes to spy on you when you arrived here..."

She just throws a small scroll towards me and I immediately see that from its fuinjutsu it was the real deal… 

I just bite my thumb a little and write my name on it and the same as with the bats I put the summon scroll in a storage seal on my wrist…

While I am still on top of one of the bats... I just look at them and smile at them all while saying…

"So the Blood Swamp is now under me… also bats… get every other summon creatures here I will be signing some more summon contracts…"

Then I jump off the bat that I was flying on… and with perfect equilibrium I stand on a tree sideways… and then I point towards the mosquito lady… and say to her...

"You will be teaching and explaining to me Sage Mode…"

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AUTHOR NOTE:

(This is when the MC starts becoming really scary and here he also showed his true colours.

All of the summons are terrified of him… soon the whole Blood Swamp will have him as it's new leader. Also the MC only has 3 S rank monsters under him. The other bats are all C Rank with some B ranks…)