A dream party (cultural festival) held once a year.
While some people are immersed in joy as they watch the events students have painstakingly prepared, the reality is that others harbor darkness in their hearts.
Midoriya notices that the villains with a story, Gentle and Love Lover, are trying to invade the school to ruin the UA Cultural Festival. He fights them to protect Eri and everyone's smiles?! Only by making everyone smile can you truly be a hero!