Ultraman, recently reminded fans on Twitter that please do not send him any original designs or story ideas about Ultraman, because it may cause trouble.
In fact, last year, Goto Masahyuki put forward the same initiative and put it on the top of his personal twitter. Although Goto Masayuki did not directly say what "troubles" it is, it is generally believed that this is the designer's fear of repeating the mistakes of the Kyoani arson case.
Goto Masahyuki explained that he doesn't think fans will have malicious intentions, but this is a very difficult world and I hope everyone understands. This initiative has been endorsed by many in the industry.
Yasuda Ryo, who was responsible for the character design of "Street Fighter 3", "∀ Gundam" and "Red Dead Redemption", said that if someone sends Ultraman's creative past, and a similar Ultraman happens to be born in the next 10 years, that person may have the idea that "you used my idea but didn't even say thank you". When I think that there may be such people in Japan, I feel terrible.