Sexual Relationship Development

Synopsis

Back in high school, Seong Jihyun had a bitter history with Baek Ian — a rivalry twisted out of shape by Ian’s obsessive need to always beat her. Jihyun expected never to see him again after graduation. But now, reunited as adults, Ian approaches her in a completely different way… and his old competitiveness seems to have turned into something far more intense, dark, and possessive. (also known as 성적 관계 발전 / Seongjeok Gwangye Baljeon) Currently completed with 12 chapters available (starting from Chapter 1 up to the latest Chapter 12).