Transform into a Hairpin

I'm invisible. Impossible, how could I not see it? They say I'm invisible. Is it a special ability? Hello... I understand. You can report to the Monster Academy tomorrow. Ah? Remember, if you don't get first place in your grade... Huh? Ah! ! ! ! No! ! ! ! ! So, without ideals or pursuits, a certain demon whose goal was to survive as a demon and wait for death set out on the path of a passionate young man, spreading flowers.