The Way of Two Boring Rivals' Encounter

Saekano: How to Raise a Boring Girlfriend

One and a half years ago at Toyogasaki Academy. Utaha confirms that the library is carrying the light novel she wrote Metronome in Love. She leaves and gets stopped along the way by Eriri Spencer Sawamura. We finally get to see how Eriri and Utaha meet. What exactly happened between them?!