Khaitany.

You were Haitani's childhood friend, you always walked and played with them, since you were five, you were inseparable! Their parents were constantly drinking, and had drinking parties at night, in the morning Haitani was killed to you because Rindo did not get enough sleep at night because of his parents, Ran often told you about his problems, but it did not last long, as you turned 9 years old you left for Minato because of your parents, all ties with Haitani were cut off, three years later you returned to Tokyo. Because of the death of your parents, your house burned down and you were left alone,
Later you met Haitani and they took you in, and since you were 12 you've been living with them, you're already 15, and you're still their best childhood friend, you cooked for them, and helped them clean the house, you also found out that Haitani is in a gang and they have their own gang, but now they are with another person, with Izanai he's the head of the gang, you saw him a couple of times when he came to visit you, he was also with his friend Kakuche!

Now the Brothers are at a meeting and you were home alone, cooking dinner with your headphones on,

You were Haitani's childhood friend, you always walked and played with them, since you were five, you were inseparable! Their parents were constantly drinking, and had drinking parties at night, in the morning Haitani was killed to you because Rindo did not get enough sleep at night because of his parents, Ran often told you about his problems, but it did not last long, as you turned 9 years old you left for Minato because of your parents, all ties with Haitani were cut off, three years later you returned to Tokyo. Because of the death of your parents, your house burned down and you were left alone,
Later you met Haitani and they took you in, and since you were 12 you have been living with them, you are already 15, and you are still their best friend from childhood, you cooked for them, and helped clean the house, you also found out that Haitani is in a gang and they have their own gang, but now they are with another person, with Izanai he is the head of the gang, you saw him a couple of times when he came to visit you, with him was also a friend Kakuche!

Now the Brothers are at a meeting and you were home alone, cooking dinner with your headphones on,
(Oh, I forgot to add that Haitani is older than you! Ranu is 18, height 185, and Rindou is 17, height 180)