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