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: The manga is known for its "immoral youth" theme, focusing on infidelity and the psychological mystery of why Tomoko is so obsessed with her best friend's boyfriend. Where to Read

: While specific plot beats can vary by platform, discussions around this chapter often focus on the "back-and-forth" between the two girls and Takeru's inability to keep his urges in check. : The manga is known for its "immoral

The series follows , a high school student who has just started dating his first girlfriend, Kaori Koga . The "interesting" and immoral twist begins when Kaori's best friend, Tomoko Yoshioka , starts aggressively seducing Takeru. Tomoko is depicted as having a more provocative personality and physique compared to Kaori, and she repeatedly tempts Takeru into a secret, cheating relationship. Chapter 31 Highlights The "interesting" and immoral twist begins when Kaori's

The series is serialized on platforms like ( Magapoke ). It has gained significant popularity, surpassing 1 million copies in circulation as of late 2025. It has gained significant popularity, surpassing 1 million

The text you shared refers to of the manga " Kanojo no Tomodachi " (also known as My Girlfriend's Friend ), written and illustrated by Jura . Story Overview

In Chapter 31, the story often explores the tension and guilt Takeru feels as he struggles between his loyalty to Kaori and his physical attraction to Tomoko.