The Hashira, Sanemi and Iguro, along with their comrades head to an abandoned castle on top of a mountain for a mission, while Tanjiro is being treated at the Butterfly Mansion for the wounds he suffered at the Swordsmith Village. Later on, the Hashira gather at the Ubuyashiki Mansion to hold a Hashira meeting, where Muichiro reveals how the marks manifested. In an effort to strengthen the entire Demon Slayer Corps from the bottom up, the Hashira Training begins...
but now that a demon
who's conquered sunlight has appeared...
...ولكن بعد ظهور شيطانة قهرت الشّمس الآن
aber seit der sonnenbezwingende
Teufel erschienen ist,
pero ahora que ha aparecido
una demonio resistente a la luz solar,
Ha aparecido un demonio
que tolera el sol.
mais un démon a survécu
aux rayons du soleil,
ma ora che un demone 
è guarito dal problema del sole,
Mas agora que apareceu um demônio 
que conquistou a luz do sol,