Sayonara, Zetsubou-Sensei, Volume 12

The story revolves around Nozomu, an unusually depressive teacher whose frequent suicide attempts contrast sharply with the lively atmosphere in his classroom. Despite his bleak outlook, his quirky students and their bizarre adventures create an engaging learning environment. The narrative explores the paradox of how a seemingly hopeless teacher can inspire joy and excitement in his students, raising questions about the impact of unconventional teaching methods and the potential benefits of "the Power of Negative Thinking."