They are both Pro Heroes and homeroom teachers of the Department of Heroes for their respective classes. As Sekijiro views Class 1-A as his rivals, this rivalry is extended toward Shota, with Sekijiro acting out competitively towards him.
Despite this rivalry, Sekijiro knows when to cooperate with Shota during serious moments. This was shown in their meeting with the media where he was worried that Shota would lose his temper though was surprised when the latter kept calm and agreed with the heckling.
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