Hangyaku no Soul Eater: Jakusha wa Fuyou to Iwarete Kensei (Chichi) ni Tsuihou saremashita  

The Mitsurugi family received the responsibility of safeguarding the demon gate from the emperor. At thirteen years old, Sora Mitsurugi, who was the heir of the family, had to undergo a trial in order to master the phantom blade style that had been passed down through generations in the Mitsurugi family. All seven other pupils who had taken the trial had passed, leaving only Sora to face his trial. His family, including his father, brother, fiancée, and siblings who had watched over him, looked on as Sora's trial ceremony began solemnly.

Hangyaku no Soul Eater: Jakusha wa Fuyou to Iwarete Kensei (Chichi) ni Tsuihou saremashita began as a web novel on Shousetsuka ni Narou on December 2, 2018. The first official volume was published on September 14, 2019 by Earth Star Entertainment under the Earth Star Novel label.