C298 Prophylaxis

"Xiao Yu..." Big Sister opened the door to the room and shouted at me, but when I opened the door and saw Chu Chen and I standing outside our house, I was shocked, "Chu Chen, why are you here too?"

"I …"

"Alright, let's enter the house first!" My sister beckoned us into the room.

When we entered the house, Chu Chen looked a little nervous