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