Don't ever bring another guy around a girl you like. I don't care if its your own fucking brother. Always make plans with her solo. If he try to third wheel straight up tell him what the deal is and you don't need the extra company even if you have to say it in front of her.
@mister wolf It was thanks to the charao that the mc and the girl started dating, they always met at his house. No way he would've sked her out without his help
The charao's plan was to use the otaku boy to let her guard down since he already tried to make a pass at her in the past but she rejected him. He invited them to play at his house and they became friends, but the guy didn't expect they would start dating, after some time he gets a chance when the otaku breaks a very rare and expensive game. He goes home first and the girl ends up paying for it
When the charao invited them to his place the other boy should have said no. That's what I'm telling you. Us men know right from the first meeting if we are interested in a girl. Don't make plans with a girl involving another guy. The only way you go along with that is if other girls are going to be there too, a group. Not no two dicks and one pussy. When you see her you ask her if she want to do something together. If she say no then she not interested, that's cool, move on. This is how you move if you want to avoid confusion or some other guy stepping on your toes. You don't help another guy get to know a girl you're interested in. For example a friend once asked me to introduce him to a girl I was currently interested in. I told him "Introduce yourself, I'm not helping you."