My Own Infinity Battle (Demon Slayer OC)

Chapter I:My fight

Ok, before we start i wanna tell few thing:
First this is about Gakusei fight against Kazoku, and before read this read once again one of my Chapter called "Infinity technique", beacuse there will be almost every technique. So better will be if you read it twice than for me to explain everything a second time, and every technique will be name like this:
#something#-technique
So make sure you read it and now lets get into it:

*He's definitely powerful if he killed Shinda, but I'll try anyway because that's my mission.* He thought and continued to patrol the area, although everything seemed calm. However, suddenly he heard a loud mocking laugh, he ran to check it out, and saw a character laughing as he looking at what was left of the academy. Gakusei knew it was a demon so he threw the sword at him, but the demon easily dodged his sword.When the demon turned to face him, Gakusei saw his grayish eyes, it turned out to be lower moon number 1, when Gakusei saw it he thought * Lower moon? The one of the 12 Kizuki? I had heard of them, but I didn't think I'd meet one in appendix number 1. but I have to try anyway.* Gakusei thought a bit in panic. He knew that it would be the hardest fight in his life, after a while the demon smiled and said. "You must be a demon slayer .. it's a shame that you will die at such young age, but don't be afraid, before you die i will make sure that you will beg me to kill you." The demon said calmly and with smile but Gakusei ignored the demon. *I think I've heard that voice somewhere ... well, it's not the time to think about this.* Gakusei thought as he attacked the demon. But demon still without any problem doged every his attack. "That's all you got? I thought that you will be more powerfull, but after all you are still nothing more than a human." Demon says with smile, but the more he talked the bigger his smile was. *damn, he doged my all attacks he is better than i thought. I must do something or he will kill me.* Gakusei thought. But finally demon decied jump to Gakusei, but Gakusei was faster than him and he jump backward but demon still try to kill Gakusei so they was fighting and jumping on the roof of house's "Why are you running?! Come and fight me!" Demon yell to Gakusei. Now Gakusei jump on bigger distance and demon stop running to him. Gakusei starts breath heavly when demon saw this he say "Are you tired now? Don't stop we was just starting." Gakusei still breath heavly *Wait he doesn't use his demon blood art he just attack me with fists, does that mean that he... UNDERESTIMATE ME?!* Gakusei was now anger and in rage he attack demon. *Infinity breath:fouth technique:The infinite curtain* Now demon don't know what happening so Gakusei attack him from behind, but demon managed to notice him, and jump up.*NOW! Infinity breath: Third technique:infinite spin* It was a good move beacuse in the air demon can't doged his attack, but demon only smile and it kill demon but then he was in front of him. Gakusei was surprised,*WHAT?! It's impossible, i see him when he was dying. What did he do?* Gakusei thought,but demon knew what he was thinking. Beacuse he see those terrified big eyes so he said with smile "Well, well maybe you are better than i thought. So now end of this play i will be now fight seriously." *I have a bad feelings about this, i must be prepared for something strong*

(Start of a flashback)

"Hey you, i know what you said to headmistress'es. Listen, i don't have time for someone like you, for person who can't even fight so i'l be quick" and in that moment he kick Gakusei in stomach "Shut...up" Gakusei said quietly. "What did you say? Im gonna kill you." And he kick him once again. "Ok, i leave him to you two. I don't want to waste time on him" Said one of them and leave them, but before he do it he kick him one more time and then he leave. But Gakusei don't have time to look how he is leaving beacuse next kid starts to kick him. So one of them was beating him, but the second was just watching. And after a while he say "Stop,enough of this."
"Yes, yes just give me a while" he replied but he don't stop "I say ENOUGH!" And when he tell that he drew some kind of knife "Wait, wait Kazoku what are you doing?" Tell one of that kid and Kazoku without any word starts to coming closer to him. And when he saw this he just run as faster as posiblle. And then Kazoku say to Gakusei "Hey, is evrything alright?" Gakusei after that much almost pass out but before that he can't only tell "Why?" And then he pass out when he open his eyes again, next to him was that kid who save him. "O you wake up good to see it" he starts talking to Gakusei "Who are you?" Gakusei ask "oh yes i forget about it im Kazoku and you?" Kazoku repiled "Gakusei"