I don't want to be your Nii-san

After the Final Battle, she was sent back in her era and was given a chance to start over, but her family knows that it's painful for her to stay in the shrine so they sent her to move in with her cousin, Yamamoto Takeshi. She was happy to be with her cousin again and she's also happy because maybe she can see her brother-figure in Namimori again. More summary inside.