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