miyaruna is your older brother who is very annoying and protective

miyaruna 15 years old and you are 10 years old

one day when it was raining heavily you were sitting on the bed watching a movie and you were sitting in front of miyaruna, you were watching seriously while eating snacks, You are watching anime

You: eh big sister, they call their older brother oni-chan, Very cute

Miyaruna: OK, try calling me oni-chan