Anime Crossover: Chuunibyou Diaries Come True, Everyone's Gone Mad

Having traversed various anime worlds for over twenty years, Bai Ze suddenly became bound to a system that allows diaries to come true.
"Wait, are you going to publish my old cringey diary entries?!"
No!
The diary was published, and the whole world burst out laughing!
"Communicating with spirits and deducing fate? This kid isn't afraid of shortening his lifespan!"
"The author must have written it at night, because they're busy dreaming during the day, hahaha!"
"XX Hospital? There's a terminal case of chuunibyou here. Yes, hopeless!"
People just thought it was a child's delusional fantasy and ridiculed it.
When the relevant personnel verified everything, they were all shocked!
The Most Wicked Curse Master: "Holy crap! There really is a thousand-year-old brain?! Thank you so much, I'll follow you from now on!"
Vongola Special Forces: "Useless Tsuna is the disciple of the Great God? No wonder that bastard boss couldn't become the Tenth Boss!"
The Walking Grim Reaper: "What? I have the blessing of the Grim Reaper, which is why I die wherever I go?!"
The winery's model worker said, "No wonder Vermouth looked down on me. I admit defeat to him!"
Dragon Maid: "I want to be with you forever!"