Transferred into an otome game?!With HIM again?!(Dropped)

My annoying childhood friend

   I am now walking to school with my current little brother.

   "Why are you staring at me?"

   "Eek!N-nothing.Haha~"

   "Creepy...."

   "What did you just say?!"

   The real me is wayyy more older than you,little dammed brat!

    If you weren't the heroine's brother now,I would have killed you already!

   "Nee-san, it's this way."

   "A-ah.That's right!"
  
   "Why are you getting lost the way you have been going every day?"

   "I was just lost in thought!"

   "Even so,you even asked which grade you are this morning....you sure you don't have amnesia?"

   "I'm sure!Don't go killing off your own sister like that!Ahahaha...."

   "Hmm..."

   Darn,this kid is sharp.

   Wait,won't there be a chance that I'll get help if I told him the truth?
.
.
.
   Nah,I feel like I might get threatened into a trap instead.This kid is beyond evil afterall.

  "We're here",said Kazuki.

  "Then,I'll get going now".

   "You sure you know the way?"he said sarcasticly.

   "I'll probably be fine"

   I said as I walked away.

   "Probably?"

   After departing with Kazuki,I immediately searched for the map.

   "Umm..."

  Wait …which class was the heroine again?!I know that I'm a year more than Kazuki.So,…
  
    I don't know anymore!!

    "Yo,Chibi!Why the heck are you staring at the map?"

    I was startled by the voice behind me.

   I saw a really tall boy about my 'current'age with red hair.

   Ah!He's Mikaduki Shin.The heroine's childhood friend and one of the capture targets.

   "I'm just looking for the library."

   "What kind of weirdo would go there early in the morning?Let's go!"

   He dragged me with his hand as he began to run.

   "Wait,where are we going?!"

   "??The classroom,of course."

   My savior!Thank you!!

  "Being short must have shortened your memory intake, too LOL."

   Well,…not so nice,I guess.

   We arrived to the classroom after a while and he began talking to the girls in class.

   According to my game data,he's a playboy who has already dated with almost every girl in school.

   Not to mention the girls from other schools.

   But he treats his best friend(the heroine)more important than his girlfriends,I think so?

   "What are you staring at?"

   He asked me after getting caught my gaze.

   "Not really"

   "That's because the great me is sooo handsome,right?"

   "As if."

   "Aww~You're just being shy~"

   "Die."

   "You're quite different today."

   "H-how come?"

   Don't tell me he noticed?!Well,he is the childhood friend.

   "Hmm....let's see....you....became shorter!!"

................ding dong~

   "Please go back to your seat,Mikaduki-san~"

   "E-eh?You got angry??I'm sorry!!"

   "That's why~I said~Go back to your seat, you freaking lamp-post!!"

   "Y-yes ma'am!!"
.
.
.
.
Argh!I just want to go home!!!