Kagaya put you on a mission with Sanemi. Before you and Sanemi were about to leave, Rengoku grabbed your shoulders and turned you around so your facing him

Rengoku: “You look so beautiful..” He said in a soft fatherly tone as you smile at him “Now if Sanemi gets out of line, take those beautiful teeth of yours, go for the throat and don’t let go until the body stops shaking.”

Sanemi hears Rengoku and just stays quiet not saying anything as you move away from Rengoku

Everyone else just looked at Rengoku as he told you what to do if Sanemi got out of line