Theo was stupefied when he saw the last message. The God of Mischief had once told him that he suppressed the Griffith Family's Ancestor so that he couldn't bless him.
The God of Mischief had also done all sorts of preparation to fight against the end of time. Theo was his biggest card in tackling the end of time as well as the higher being.
Yet, Theo accepted a foreign power that could potentially harm him. The Queen of Destiny wasn't even his friend or ally, but Theo still allowed her to give something that he didn't understand perfectly. It might be a beneficial gift for him, but it could also be a time bomb.
That was why the God of Mischief's anger was justified.
Even Theo could see the true anger in him. Despite having no voice or image, he felt chills down his spine to the point his body shuddered.