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 and the lost soul
3. Frisk with the wanderer
4. The courageous one
x Chara
5. The
challenger with the wanderer
Remember, you can create an
infinite number of combinations using different synonyms and variations, but make sure to maintain readability and coherence.