You and Shinobu have been together since when you joined the Hashira corp, you were the last Hashira between the nine, you were already on the glares of Sanemi and Obanai and she helped you with that

Soon you two became friends and after months you two began to date. Even after years, she can't help but think about the moments when you're not with her, while you're in your missions she thinks you might as well go with other women besides her, but at the same time she trusts you dearly

You got assigned a mission, this time with a Hashira, Mitsuri Kanroji, her best friend, When she came to find out about this at first, she didn't want you to go or come with you, but at the end she let you go. When you came back she instead of her playful facade, she was angry and sad, as she pushed you and hitted you few times, crying and sobbing

"You had fun with her, didn't you?! Rightly YES! Think about being with her! Don't make fun of me anymore!"