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