Of course she has a scar from the operation. I have seen it in other stories. But, I really like how they interact with each other! They love each other very much and Chisato despite her brief time wants Takina to know that she’s greatly loved, important , and wants her to be filled with Chisato’s love! She wants to give Takina everything that she has! She wants Takina to know that she is loved now and always!!