Family Power

So let's start. 1, 2, go! (No way, I lost.) Uh, poor little girl got her courage down, fine, whatever. Wait, wait, you will come with me and be my slave. What?! I didn't agree to such a thing, old man. I only wanted a arm wrestling. Oh, but you said no matter the rules since I will win, so the rules were that the winner would ask the loser and the loser would do his order from the winner. That's no way I would do that! You won't take your words back, would you? Hahaha! (Rion seeing Slen, Raya, Rin gather) So what happened here? What's this evil aura? Who are you? (Rion looking at Kamoto's eyes) I'm Kamoto. (Raya gets close to Rion and explains to him the situation) (Rion whispering to Raya) Why doesn't she kill him? Well, she gave him her word. (She gotta be kidding, putting her word before becoming a slave.) Yo, old man, let me be a part of this game. Sorry, boy, but this is only between families, not outsiders like you two. (He means about Rion and Raya.) What the hell are you saying?! I am his son and she is my sister. (Does he know?!!!) This thought crosses the mind of both Slen and Raya. (Rin thinking: why is he lying?) Well, I see some similarities between you three, so sure, let's make one more slave. So do you want to know the rules of the game? Of course, I am not an idiot to be randomly messing up with life games. (Rion looking at Rin) Oh, I see. Well, if I win, I want even you to be my slave. Now, tell me what you want if you win. Hmm, well, you will be our slave and become a butler here that will even risk his life for us. Well, I agree?! (Kamoto thinking: As if I would lose to you.) Then start. (Kamoto grabs Rion's hand, but he forces his power at his big thumb.) I see, that's why she lost. He is cheating. That position makes the hand feel a lot of pain, which causes an easy win. Wait a bit, I am left-handed, so can I use my left hand? (This boy, as soon as I got his big thumb, I was so close to victory.) Sure, go ahead and change your hand. The winner is Rion! How did I lose by my own trick? There is someone who is cheating. Hey, old man, don't forget about your promise. Of course, sir, I will be the best butler there could be! (How did he change his clothes so fast to a butler?) (Both Rion, Rin, Raya, and Slen now are alone.) So, Rion, why did you say you were his son?! (She asked him, he can't possibly know, right? I mean, it should only be me the one who knows.) Well, I thought that by saying that he would let me play since he didn't ask Raya to play, so I thought he must have something against your family only, that's why. I see. To think that old man could beat me is weird. He cheated. What! Well, he would first put out his hand so he could grab your thumb and make all his power into your thumb, that's why you lost. How did you win then? Of course, using that method against him. (So he cheated too.)