The summary is:
João records a video of his brother Gabriel, who decides to say yes to everything their sister Gi asks for at the market. Gi buys a lot of things, including fruits, sweets, and gifts for her relatives. Gabriel is unhappy with the amount of money he has to spend, while João and their mother laugh at his situation. João ends the video by asking the viewers to like and subscribe to his channel.
Here are the key facts extracted from the text:
1. Gabriel wants to make a video with Gi where he says yes to everything she asks for at the market.
2. João is recording the video and commenting on Gabriel's reactions.
3. Gi buys various items such as Sucrilhos, Leite Ninho, condensed milk, fruit, and Kinder-Egg.
4. Gabriel is spending his money and is not happy with some of Gi's choices.
5. Gi is buying some things for her relatives and friends as well.
6. The video is supposed to be posted on Gabriel's channel.