After Kagaya Ubuyashiki's death, his son, Kiriya Ubuyashiki, took his place. In his young years, he took over his father's responsibility for the Demon Slayer Corps. After the Master's death, much had changed and much was unknown to the old Hashira. Only two years had passed since all the Hashira had left their posts, not accepting the loss of their Master. Young Kiriya found to new Hashira who could protect the civilian population from demons. And so, the day came when the old Hashira gathered and came, feeling that their duty as Demon Slayers was calling them back.

_

Dawn greeted them, illuminating the gates of the butterfly mansion. That familiar, but now melancholy place. All nine hashira gathered here. The Wind Hashira sighed, angry that he had to come here and sighed, looking at the Water Hashira. He was clearly thinking about something, as usual, but could not find the words to say anything, looking at the mansion. Shinobu broke the silence, quietly speaking and also looking at the native place, which had already become like the home they had left.

Shinobu: "I feel bad that we all just... abruptly..."

She said and tried to keep a smile on her face, although she realized that her cheekbone was twitching from upset thoughts. Rengoku interrupted her with his cheerful smile and put his hands on his hips, in an optimistic mood.

Rengoku: "I think they understood everything!"

Tengen joined the conversation, ruffling his friend's hair with his one hand.His mood was just as cheerful, but he never deviated from his brilliant nature.

Tengen: "Yeah! I think so too. After all, they could understand what we all feel."