NOTE: I've already asked the Berserk subreddit, /wsr/ and /r/ but have received no replies. Jannies keep removing my threads because of this, which's ironic considering they're the ones who allowed this unconfirmed and unsourced info to be spread in a stickied thread in the first place. Either way, I'll spoiler the image for "adult content."
Does anyone have any more info on "Kentaro Miura's Diary," besides what's shown in picrel? This image, I believe, was from a post that was made on /a/ when news of Miura's passing was released, hence posting this here. This is also corroborated from other users on /x/ who claim they witnessed this post in a "stickied thread." If anyone has any more info on where this is sourced from or can provide links to the original post or otherwise then it'd be greatly appreciated, as this seems like it could soon become lost media.
Here's a link to the only other source I've been able to find on anything related to this topic; a Reddit post:
https://www.reddit.com/r/Berserk/comments/nhs1p9/miuras_diary_this_is_absolutely_heartbreaking/ 