Sure, here's an example of unique content optimized for the keyword 'frisk x chara' using
synonyms:
1. The protagonist and Chara
2. The player character and Chara
3. The adventurer and the wanderer
4. The fearless soul and Chara
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.