In the latest Blue Lock Rivals Update, the Hiori Style is getting reworked with new abilities and a brand new chemical reaction with the NEL Isagi Style. So, if you are a NEL Isagi or Hiori Style user and want to perform this new Chemical reaction with your friend/partner, let me help you out!
How to get the Hiori and NEL Isagi in Blue Lock Rivals
Before performing the cool Chemical Reaction, you need to have one of the two styles in the game. To get Styles, press the Style option from the main menu to open the Style window. Here, you can use either the Lucky Spins or the Default Spins to roll for both the Style. Since Hirori is just an Epic-type Style in the game, it is much easier to get this using the Default Spins, while you can use Lucky Spins to focus on getting the NEL Isagi, which is a World Class Style. From here, keep spinning until you get one of the two Styles.
Remember, even if you get both the Styles, you require a partner to perform the Chemical Reaction. So, ask one of your friends to get the other required Style, i.e., if you have Hiori, ask him to get NEL Isagi or vice versa. Otherwise, you have to rely on a random player to perform Chemical Reaction.
How to perform the Hiori X NEL Isagi Chemical Reaction
To perform the chemical reaction, the Hiori User must use the Laser ability to pass the ball to the NEL Isagi user, who should press the Lefty Shot while receiving to trigger the special chemical reaction cutscene.
Speaking about the cutscene, it is a pretty simple and well-animated cutscene where you can see the passing of the ball between both users and the kicking of the ball.
For more on Blue Lock Rivals, check out How to get the Yukimiya Style and Flow in Blue Lock Rivals or How to get NEL Rin in Blue Lock Rivals