My game has multiple endings.
So I could not say that a particular ship was official.

But if you have ever played my game,
I think you know ”Two people who do not spoil the image of the game even intimate”

To be clear, witch's heart is not a game about homosexuality.
In Japan, using "official tags" for "fan art that is significantly different from the content of the work" is considered to be a manner violation.

The reason is that there is a risk that the image of the work will be broken or that the contents will be misunderstood by those who do not know the work.

I'm Japanese
My English may be wrong.

『公式タグ』の『カップリング』についての話
(人によっては見たくない内容が含まれているかもしれないのでご注意ください。) https://privatter.net/p/5717138 

こちらの内容について自分なりに翻訳したものです。