Chinatsu Tokiwa has always struggled with changes to her environment and loves her peaceful life. One day, when the new hires join her company, she recognizes one of them... it's none other than her ex-stepbrother, Azusa!
Chinatsu and Azusa became stepsiblings when her mother remarried his father, but they became estranged after their parents divorced.
As Chinatsu is fretting over whether or not to set boundaries with Azusa at work in order to avoid any possible headaches at his welcome dinner, Azusa passes out drunk... and Chinatsu ends up taking him home. She puts him to bed and turns around to leave when he wakes up and reaches for her arm!

Azusa shoves Chinatsu onto the bed with his big, masculine hands and tries to have her to himself... Follow Azusa's clingy love for Chinatsu after the two are reunited!