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