I couldn't think of a situation, so I decided to send a part of one of my chapters.
Here's the picture. There's four people present, the MC, and three of his siblings.
They're trying to get through this thing called "Death's Corridor", which is a long hallway deep underground.
This patch of sentences only has one of the MC's elf sibling. Its the line towards the end.
Now, we had bid a temporary farewell to the dhampirs here, as we prepared to once again enter Death's Corridor.
"Here it is. The door seems to have held on, little bro." Lucas went over to the door blocking the hallway.
I still remembered this. We had closed it up due to the skeletons following us, but now it was time to open it up again.
With Lena and Aurelia on one side and Lucas on the other, my siblings pulled on the door with all their might.
It took a few seconds, but eventually the door began to open, until it revealed the bloody floors behind it.
Looking each other in the eyes, we all nodded, before heading inside that dark place.
"Ahhh... I remember this scent. Oddly enough, it's super nostalgic."
"But you still hate it, right?" Lena peeked over my shoulder, her hand on her nose.
"Of course. I hate it so much that I think I'd rather die. But it's still nostalgic. Anyway, now that we know that this is basically a straight line, anybody down for a race?"
"Coming from you, little bro? I'm down for it, but I think Lena might get defeated too easily." Lucas was also clearly bothered by the stench, but upon the mention of a race, his ears perked up.
"Oh, really now, Lucas? If I remember correctly, I was the one who won our last few races?"
"Those was the horse ones! Mesmer wasn't interested in racing, anyway. I know I can beat you if it's just by ourselves."
"Heh, I'll take you up on that. Sorry, little brother, but could you get on Aurelia? I want to have this race."
"No problem at all. In fact, since I was the one to suggest it, it's only right you guys get to go. We'll be following close behind."
"Indeed. You two can focus on getting to the end as fast as possible. I will be right behind with my lord."
I'd post the entirety of the chapter, but I didn't.
Alright, here's the example. Ai-chan didn't change the last three lines because Ai-chan had no idea what was going on there. Please understand that this is merely an example of how to write based on your example. Ai-chan does not read your story, so Ai-chan's description likely does not fit your story. This is just an example.
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"Here it is. The door seems to have held on, little bro." Lucas went over to the door blocking the hallway.
He touched the door with the palm of his left hand and shivered suddenly. It felt cold to the touch. Colder even than the air in the tunnel that chilled us to the bone.
I remember this door. We had closed it up to block the skeletons following us, but now it is time to open it up again.Shall I say that I have mixed feelings about it? What feelings would better describe this moment? Fear? Anxiety? Trepidation? Or loneliness?
With Lena and Aurelia on one side and Lucas on the other, my siblings pulled on the door with all their might.It took a few seconds, but eventually the door began to open, until it revealed the bloody floors behind it.And further beyond, piles of bones laid still like a trap waiting to sprung.
Looking each other in the eyes, we all nodded, before heading inside that dark place.This same dark place that we ran away from not too long ago. The same dark place that brought up a mass of memories that we would rather forget, yet we couldn’t. For those memories were what made us, us.
Without realizing it, I instinctively sniffed the cold winds of the chamber. "Ahhh... I remember this scent. Oddly enough, it's super nostalgic."
"But you still hate it, right?" Lena peeked over my shoulder, her hand on her nose. I could see she tried to avoid breathing in the scent.
Frowning, I looked down into the darkness beyond the stairs. "Of course. I hate it so much that I think I'd rather die. But it's still nostalgic. Anyway, now that we know that this is basically a straight line, anybody down for a race?"
"Coming from you, little bro? I'm down for it, but I think Lena might get defeated too easily." Lucas was also clearly bothered by the stench, but upon the mention of a race, his ears perked up.
Ah, dear Lucas. My brother from a different mother. My brother who doesn’t act like a brother. My brother who can’t bear the thought of losing. But he’s also a brother I can rely one. A brother who would do anything to keep his siblings safe. A brother, who swore to take care of us before our parents grave.
Recalling Lucas’s many contradictions made me chuckle. "Oh, really now, Lucas? If I remember correctly, I was the one who won our last few races?"
Lucas grinned wide, his fangs protruding as he wore his pride on his sleeves. "Those was the horse ones! Mesmer wasn't interested in racing, anyway. I know I can beat you if it's just by ourselves."
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Your problem here are 2 things:
1. Your composition lacks description and feeling. It makes the scene bland and easily forgettable as your readers don't commit into imagining the scene. Basically, they're simply moving along until the next scene. Make every character distinct. Make every character feel human.
2. Your lines are mostly single lines and if you read from top to bottom, it feels like you're reading the same thing and you could easily get lost and forget what you read. You probably copied Japanese web novel system, but Japanese writing system is different. There are kanji, hiragana, katakana and furigana and the onomatopoeia that makes every line distinct. So it's much harder to get lost in a Japanese composition than English ones as Japanese writers would also include sounds into their composition. You could do this, but Ai-chan heard sounds like crash, boom, klak and all that are unfavourable in English compositions.