>>281394958
You mean these Yuu POV chapters? No, Maruto said they ended up as novel sidestories because they seemed too unglamorous to work as mainline chapters:

>This story, which will continue for a while from now, is actually an important story that will be the foundation of the series, but it was almost shelved because it was too lacking in glamour. So, this is the beginning of the Yuu episode, where the secret is revealed.

>>280132806
And regarding the Yuu POV prequel sidestory:
>This story, which will continue for a while from now, is actually an important story that will be the foundation of the series, but it was almost shelved because it was too lacking in glamour. So, this is the beginning of the Yuu episode, where the secret is revealed.

https://note.com/saranami/n/n7a0eb474a93d
Someone ran it through AI MTL in the previous thread, which came out more intelligible than Google TL: >>280109370