Manga author discusses bullying's lasting impact and a victim's quest for emotional revenge

A manga explores the complex aftermath of bullying, focusing on a victim's desire for revenge and a perpetrator's lack of awareness. The story follows Sumire, who was bullied in middle school by Mizuki, who didn't recognize her actions as bullying. They unexpectedly reunite in high school, with Sumire planning to exploit Mizuki. Sumire's grandmother encourages her to use the situation, leading Sumire to decide on a unique form of revenge: to exhaust Mizuki emotionally rather than seek direct retaliation.