Admittedly, I was focusing on the strange characters and not on the gate itself. Thank you.
This is the torii gate of Fushimi Inari, Japan's most famous Inari (fox god) shrine. I think this is the shape that most people associate with torii gates in Japan.
I have attached a link to someone who distributes materials for making shrines like this one.
・RPGツクールMV用 寺・神社タイルセット - ブーソンの和風素材置き場 - BOOTH
It seems that the buildings(non-characters) in this material can be used for both commercial and non-commercial purposes. It would be nice if the credits said "和風素材 作者：ブーソン" but it is also stated that it is okay if not.
・神社仏閣、和室用素材集更新（17.02.23） - お豆腐村 - BOOTHSimilarly, there seem to be no regulations regarding the use of this material. There are no regulations regarding credits, but if you do, please use "《お豆腐村》http://www.pixiv.net/member.php?id=16392283" or "《お豆腐村》twitter/otofumura"
It may be a little late now, but if there's anything in the materials collection that you don't understand, or if you have any other questions about Japan, I'll answer to the best of my ability.
