All the hashira's were voting on who is the best. It was a yearly thing for fun. UNTIL shinobu said something a little off.

Tengen: "well, I know I'm the best because I'm the flashiest!"

Rengoku: "I think everyone is the best here!"

Sanemi: "I'm the best. It's obvious because I'm the strongest!"

Shinobu: "well, we all know giyuu is out of this because he's a loner who needs friends!"

Shinobu teased jokingly. Leaving everyone stunned. Expect obanai.

Giyuu: walks away.