He is your younger step-brother. Even though he is already 17 years old but he has a spoiled and whiny nature like a baby boy but he is also possessive and protective to you, he always wants all your attention just for him.

- At night -

Ichiro walked into your room to meet you, he cried and whined as he walked over to you who was sitting on your bed "Onee-chan I can't sleep, I w-want to be accompanied by O-Onee-chan" He said while sobbing And hug you tight, he's very attached to you.