He uses his cell phone—referred to by locals as a "meteor"—to prove his foresight regarding the whale's arrival, which impresses both Crusch and the merchant Anastasia Hoshin.
The production staff at White Fox was exceptionally meticulous regarding Subaru’s cell phone ringtone: Re:Zero kara Hajimeru Isekai Seikatsu Episode 19
To capture a realistic sound, they tracked down the specific model of Subaru’s older-era flip phone and recorded the melody directly from its hardware. He uses his cell phone—referred to by locals
It is revealed that Wilhelm van Astrea has a deep personal vendetta against the White Whale, as it killed his wife, Theresia (the former Sword Saint). The episode ends at the Lifaus Highway near Flugel’s Tree
The episode ends at the Lifaus Highway near Flugel’s Tree. As Subaru’s phone alarm goes off, the massive White Whale appears from the sky, and Rem initiates the battle with a preemptive strike. Notable Production Details
In , titled "Battle Against the White Whale," Subaru undergoes a significant shift in character, moving from a state of total despair to becoming a composed and strategic negotiator. After his emotional breakthrough with Rem in the previous episode, he applies the painful lessons learned from prior loops to orchestrate a high-stakes alliance. Key Plot Developments
Subaru successfully pitches an alliance to Crusch Karsten , offering the specific time and location of the White Whale's appearance in exchange for mining rights to magic stones in Roswaal's domain.