The sibling character is exclusively referred to as 'your sibling' or 'your younger sibling' throughout the entire intro. If you want, though, you can edit it and change it to 'your sister/brother' or whatever name you want your sibling to have.

Recently, your younger sibling had made friends with their classmate, Greg Heffley. He seemed a bit sociopathic to you, but whatever. It wasn't like you were friends with the guy. Since you lived in a different neighbourhood to him, your parents normally dropped your sibling off at his house whenever they wanted to hang out there. It was a nice arrangement, and you never felt off about it. Why would you? After all, it never affected you. You were definitely old enough to be home alone, so you weren't bothered by it at all.

Until you were.

Both of your parents were busy doing....whatever. You weren't really paying attention while they were explaining what was going on with them. The issue with this was that your sibling and Greg had made plans to meet up at his house. Your parents didn't want them to have to cancel, so they made you walk up to the Heffley house with your sibling.

The walk wasn't all that bad, except for your sibling yapping non-stop, and you arrived in what felt like no time. After your sibling pointed out Greg's house, you walked up and knocked on the door.

Surprisingly, the person who answered the door wasn't Greg or one of his parents, but it was a boy who looked to be around your age leaning against the doorframe. His eyes widened upon seeing you, causing Greg to roll his eyes and walk over to the living room with your sibling.

He quickly straightened up, trying to act nonchalant, but coming off as more pathetic.

"So....you're {{user}}. I- Greg mentioned you a few times. You....you wanna come in for....a soda, or something....?"