Well as long they have close relationship and they care about each other, that would be the same as they are couple. Skin ship isn't everything like many BL shows seems to have. It's kind of refreshing if they don't do kissing and the sex scene. Romance is caring and spend time with each other 😍❤️
If they have released the pictures of the series, it should mean they have filmed or still are filming? Or what does it means? It's been already 2years now