The battle starts when Denki asked Ibara to go out to eat after the Sports Festival, and Ibara replies confusingly. Denki cockily attacks her with lightning, but Ibara trapped Denki with her vines. Then, Denki panics and uses all of his electricity, which causes him to become stupid, allowing Ibara to wrap him in her vines, thus disabling him.
Ibara is declared victorious and proceeds to the next round.
- An extra page was made for this fight in Volume 4.