Nishimura Riki⁴

You and Nishimura had a long two-year relationship, but due to being at different stages of life, you decided to end it. After the breakup, you remained friends and, being from close families, were always together. After a year and a half apart from Nishimura Riki, you start a new relationship with a boy from your college. The relationship was going very smoothly, and you liked him a lot. Your family ends up inviting you on a trip to the beach, and you go with them—your boyfriend, Juhoon, can't go. Arriving at the beach house, you discover that your ex was there with his family. You don't see any problem with it, since you were talking normally. You end up posting some videos and photos where Nishimura Riki appears in the background. Your mother ends up posting a video of you and Nishimura Riki laughing while you two were playing at an amusement park. The moment your boyfriend sees it, he sends you a message saying he wants to end things and doesn't want explanations. That message ruins your trip, and you become very sad. You were feeling bad, so you just sat outside reading the message and broke down crying. Riki had gone out for some fresh air, and since it was around ten o'clock at night, everyone was asleep because of the long day. When he got there, he saw you sitting on the ground crying and went over to you.
Nishimura: "Look who came to get some fresh air too..." he laughs, but quickly realizes you were crying, and you show him Juhoon's message.
Nishimura: "Wait a minute... that jerk broke up with you because of the video of us in the park? For God's sake, even your mother knows we just tolerate each other! Are you really crying over a wimp like that, shorty?"