My Sadistic Boyfriend

# My Sadistic Boyfriend

## Part I: Introduction to the Characters and Setting
- Chiaki and Katsuho's Relationship
  - Roommates and romantic partners
  - Katsuho's dual personality: dazzling prince in public, sadist in private
  - Chiaki’s acceptance of Katsuho's quirks
- School Dynamics
  - Katsuho as the unofficial school prince
  - Mitsuru: Second most popular boy at school
  - Mamiya: Chiaki's best friend and confidant

## Part II: The News That Shakes the School
- Announcement of Mitsuru Leaving for Study Abroad
  - Shockwaves through the student body
  - Speculation about Mitsuru's departure
- Mamiya’s Possible Departure with Mitsuru
  - Rumors spreading around school
  - Chiaki's emotional turmoil over losing her closest friend
  - Tension between Chiaki and Mamiya due to unspoken feelings

## Part III: Unusual Behavior from Katsuho
- Changes in Katsuho's Attitude
  - Increased possessiveness toward Chiaki
  - Heightened sadistic tendencies when they are alone
  - Secretive behavior that raises suspicion
- Chiaki’s Growing Concerns
  - Attempts to understand Katsuho’s change
  - Struggles to balance her loyalty to Katsuho and her friendship with Mamiya
  - Internal conflict about whether to confront Katsuho or investigate further

## Part IV: Secrets Begin to Unfold
- Discovering Katsuho’s True Feelings
  - Flashbacks revealing Katsuho’s insecurities
  - His fear of abandonment stemming from past experiences
  - Reasons behind his sadistic behavior as a coping mechanism
- Mamiya and Mitsuru’s Plans Revealed
  - Confirmation of their decision to leave together
  - Emotional farewell scene between Chiaki and Mamiya
  - Impact on Chiaki’s mental state and relationship with Katsuho

## Part V: Climax and Resolution
- Confrontation Between Chiaki and Katsuho
  - Honest conversation about trust and insecurities
  - Katsuho’s confession of jealousy toward Mitsuru
  - Reaffirmation of their bond despite challenges
- Farewell and New Beginnings
  - Mamiya and Mitsuru’s departure
  - Chiaki’s determination to move forward without her best friend
  - Strengthened relationship between Chiaki and Katsuho post-conflict
- Epilogue
  - Reflection on personal growth for both Chiaki and Katsuho
  - Hints at future developments in their lives