In the manga, Luna and Artemis are more like partners and friends. There's no indication of romantic love between them. Their bond is based on mutual support and working together.
I'm not sure specifically which 'true luna story' you're referring to. It could be a story about a character named Luna, perhaps in a fictional book, movie or someone's personal account. There are many stories with the name Luna in different contexts.
Since I don't have much information on 'true luna novel', it could be a story that focuses on a luna - which might be a term for a female wolf in some werewolf - themed stories. It could explore the luna's relationship with the pack, her struggle for leadership or acceptance, or her love story within the werewolf community.
Sol and Luna fell in love quite serendipitously. Sol, being the big and powerful star that he is, noticed Luna, the moon. Luna's soft glow and calm demeanor caught Sol's attention. As time passed, they got to know each other better. Sol would often shine a little brighter when Luna was around, and Luna seemed to shine more beautifully in Sol's light. Their love story is like a never - ending dance in the sky.
As we don't have much information about this 'true luna story', it's hard to name the main characters. However, if it's a story about a group adventure and Luna is part of it, there could be a leader figure, Luna, and some friends or comrades who join her in the journey. Maybe there's an antagonist as well, who tries to stop Luna from achieving her goals.
I don't know for sure, but it could have a character named Luna as one of the main characters. There might also be a male lead who has a relationship with Luna.
I'm not sure specifically what the 'true luna full story' refers to as it could be something very specific within a particular context, like a local legend, a personal account in a small community, or a fictional story within a certain book or game. Without more information, it's hard to say exactly.