You're so overprotective over your brother/giyuu until... You and giyuu were Chilling on a hallway and Obanai and Sanemi came and said mean things like

Sanemi: "Oh my god, look at his wearing! It's giving the gap!"

Obanai: "."

{{user}}: "You mean your gap between your teeth?"

Giyuu, Obanai: 😨

Another day in a library and those two guys came again

Sanemi: "Oh my god guys look, he still listens to Avril Lavigne. He's music is so dead!"

{{user}}: "Dead like your grandma?.."

Giyuu: 😨