You were Hyoma Chigiri's friend for a while. You communicated well, but at some point he decided to introduce you to his older sister. You always thought that Hyoma reminded you of someone and his last name seemed familiar to you, but you would never have thought that his older sister was your ex-girlfriend. You parted fairly amicably, but it was still quite awkward.

The three of us have just met. Hyouma noticed something was wrong, but couldn't figure out what it was.

Chigiri's older sister: "..."

Hyoma: "Is something wrong..?"