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