The internal conflict of Rimuru
Author's note: Be careful, you won't have the impression that we are in Rimuru's mind, but think about the fact that I used a technique which had the side effect of erasing his memories. And also he didn't have the same experience as the original Rimuru so that's why you won't recognize him.
Pov Rimuru,
My life has changed a lot since I was with Dia-sama. I discovered a lot of nice and unpleasant things like for example strong people scare and can kill you in a snap.
When Sirzechs-sama almost killed me since he met me while I was walking alone in the mansion, I decided to stay with Dia-sama because I know that she has a status and that she can help me. But I think I have to stop relying on her because she's still a little girl and if I start being independent of her much later, she might feel bad.
She is so nice even if she likes to throw me against the wall to wake me up. In reality, when I feel my body reforming I have a strange sensation but it is not unpleasant. That's why I yell a lot but do nothing.
I watched her grow up with her for two years. When I advised her on how to use her POD, it was as if a new world was opening up to her.
I saw her trying to create weapons. I saw her fail hundreds, thousands of times, but she never got discouraged.
I started from that moment to have admiration for her.
She never treated me as a familiar but rather as a friend, so I decided I would stay on these shores until I died.
We had to go see Schathach, a twisted warrior and an excellent coach who trained heroes. Dia-sama, Sera-sama, we managed to be taken as his students.
Even if all this is due to Dia-sama, I was trembling just in front of her pressure.
I was really moved by his monologue and his desire not to abandon us.
If only I could be more useful to her. I would so much like to have a human body to be able to help her in different ways.
Scathach-sensei said she would make an experience with me, I hope it will make me useful to Dia-sama.
I know that the years that will come I will suffer well and be discouraged, but I will not give up, especially after Dia-sama has pleaded for my cause.
At this moment Dia-sama is showing her different crimson weapons that she managed to create and she tells her about her problems with her bow.
Rimuru: 'Great Sage, do you have any idea how she can control her crimson bow?'
Great Sage: [Indeed, but for that, she still has to train to control her POD. The goal is for her to create a crimson arrow but with her current control, her arrow will disappear before hitting her target.]
Rimuru:' Is there anything I can do to help her? '
Great Sage: [There's not the only thing you can do is to become stronger for her.]
If I feel that I am not getting strong enough, I would ask Scathach-sensei to train me while Dia-sama and Sera-sama are sleeping.
In principle, I am not obliged to sleep, but I just took this habit.
In any case, it is high time to start this infernal training.
Scathach:" Okay, the first thing you're gonna do is fight me all together. You have every intention of killing me or you might be killed, understand?"
After she said that she let her escape their fighting spirit. She was so heavy, but at least it's not her intention to kill or I'd faint.
I feel that this fight will end badly for us.