In this fanfiction, Shion and Kiyoki are likely two characters created by the fanfic author. They could be based on certain archetypes like Shion might be the more adventurous type, always looking for new experiences. Kiyoki, on the other hand, could be more reserved and calm. But when they meet, their personalities start to complement each other.
In the fanfiction, their relationship could develop gradually. Naruto, being the friendly and outgoing person he is, would approach Shion with an open heart. Shion, initially guarded, would be intrigued by Naruto. As they spend time together, Naruto would introduce Shion to his friends in Konoha. She would be welcomed into his world. Shion would in turn show Naruto the beauty and mystery of her own world. They would support each other through difficult times, like when Naruto faces political opposition in the village for being with Shion. Their love would grow stronger through these trials, and they would ultimately get married.
At first, it might be a bit rocky. Naruto is used to the fast - paced life in Konoha, while Shion has her own ways from her village. But as they share experiences, like cooking together or training each other, they start to appreciate each other more. Naruto would show Shion the fun side of life in Konoha, and Shion would introduce Naruto to the spiritual side of her village's shinobi culture. Over time, their love and respect for each other would grow stronger.
A slime girl in a slime girl tf (transformation) story is often a fictional character. She is typically made of slime or has slime - like properties. Usually, she can change her form or interact with the environment in unique ways due to her slime nature.
Slimes in these novels are often depicted as having a gelatinous, amorphous form. They can usually change shape to some extent, which gives them an advantage in various situations, like squeezing through small spaces.
Here are some recommendations for novels similar to I'm Not a Bad Slime:
1. Death: Creating a Country of Light, by Big Blue Fatty
2. The Reborn Little Lion, Author: Tomato Leek Egg Bun
3. "1992, One Punch Superman of Tokyo's Entertainment World", by Wei Zheng of Xiliang
4. "Douluo: Legend of the Dragon King, Torturing the Holy Spirit Cult Madly". Author: (Author not provided)
These novels might have similar plots or styles to I'm Not a Bad Slime. Please note that the above recommendations are based on the search results provided. There may be other similar novels that are not listed.
I recommend you to read the Doujinshi novel," Comic: About My Reincarnation as a Slime." This novel was written by the author, Dumb Eater. It was a light novel, a derivative doujinshi novel. Although the search results mentioned other doujinshi novels, the one that is most relevant to your description is this novel. If you want to read the manga version of About My Reincarnation as a Slime, you can try to find limited reading resources on other platforms.
I don't have enough information to say who exactly 'Strongest Hero Shion' is. Since I'm not familiar with the specific novel, it could be a character created by the author with unique powers and a backstory.