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