D_Cide Traumerei the Animation (2021)

S1E12 Staying True to Your Feelings

Murase challenges Ryuhei to consume the Somnium Drop to uncover his true desire—the Lord of the Faith. Without hesitation, Ryuhei takes the drop and discovers the Lord of the Faith within Troy Merai's inner castle. However, to his shock, the figure behind the mask is his older brother, Junpei, who urges him to make a wish using his brother's visage. Meanwhile, Reina and the others arrive to rescue Ryuhei by also taking the drop. When Ryuhei faces peril, it is Reina who selflessly offers her wish, putting aside all pretenses.