Synopsis

He calmed Sonoko and laid out his reasoning for the officers, revealing that the perpetrator had moved beneath the table, using their feet to mimic Tadami’s movements, thereby causing the convulsion. He identified Tsujiei as the guilty party, citing the red polish on Tsujiei's toenails, deliberately matched to Tadami's. Tsujiei confessed, admitting that Tadami had encouraged their terminally ill friend to take her own life a month prior, driven by a morbid desire to witness death.