Well, yuri in manga basically means stories centered around female-female romantic connections. It can show different aspects of these relationships, like emotional struggles, sweet moments, and sometimes even physical expressions of love.
I'm not sure. To determine if it's yuri, you'd need to look at the depth and nature of the relationships between the characters. Sometimes it's not straightforward and could be open to debate.
The themes in mature yuri light novels can be quite profound. Such as the exploration of identity in a relationship. The characters might be struggling with their sexual orientation and how it fits into their lives and the society around them. Moreover, the storylines are usually more intricate, with more twists and turns that keep the readers engaged.
One popular mature yuri light novel is 'Citrus'. It delves into the complex relationship between two girls, Yuzu and Mei. Their relationship starts off rocky but gradually develops into something deeper and more meaningful. The story explores themes of love, self - discovery, and family in the context of a yuri relationship.
Yes, Yuri on Ice is based on a manga. The anime closely follows the manga's framework, but there could be some minor changes or additions to suit the animation format and add more depth to the story.