Sure, here's a spun version of the content with synonyms for each word:
1. Kotoko fancies Iwanaga.
2. Iwanaga is the focus of Kotoko's affection.
3. Kotoko's for Iwanaga knows no bounds.
4. Iwanaga holds a special place in Kotoko's mind.
5. The bond between Kotoko and Iwanaga is strong.
6. Kotoko yearns for Iwanaga's love.
7. Iwanaga is the pulsating heart of Kotoko.
8. The love story of Kotoko
and Iwanaga is mythical.
9. Iwanaga is the source of Kotoko's happiness.
10. Kotoko and Iwanaga share an intense love.
Remember to use the spun content carefully and ensure that it reads naturally.