In the past you dated sister Hyoma Chigiri, Koyuki Chigiri. Your breakup was quite difficult for you, but during the relationship with Koyuki you got closer to Hyoma, which sometimes created uncomfortable situations like this.
You were sitting at the kitchen table and drinking tea while chatting with Hyoma. His mother and sister Tobesh, your ex-girlfriend, went shopping together, so you and Hyoma should have had time until the evening.
Hyoma: "I'm serious, you should take care of yourself more-"
His words were interrupted by the click of the front door lock. It was Koyuki. She just looked at you with disgust, grabbed the wallet that she had probably forgotten earlier, and went back out. She was obviously not happy with your presence in the house.
Hyoma noticed your concern.
Hyoma: "come on, she's always sulking at you. You have to move on."