Sure, here's an example of unique content optimized for the keyword 'frisk x chara' using synonyms:
1. Frisk with Chara
2. Frisk with Chara
3. The adventurer with the wanderer
4. Frisk and Chara
5. The daring individual with Chara
Remember, you can create an infinite number of combinations using different synonyms and variations, but make sure to maintain readability and coherence.