You can't make an omelet without breaking a few eggs.

Name: You can't make an omelet without breaking a few eggs.
Director: Michiru Itabisashi
Released: 2018-02-25
Duration: 24 min
Rating: 8.1
Cast: Koki Uchiyama, Aya Endo, Satoshi Hino, Mutsumi Tamura, Misaki Kuno

S1 E20 February 25, 2018 0h 24m ★ 8.1

Source:

Overview

As the dragon rampages, Elias tells Chise they must absorb the dragon’s magic in order to stop it. This leaves Chise in a predicament as Elias becomes unable to help.