Why did Kiriya Kazuaki break up with Utoda?

There may be many reasons why Kiriya Kazuaki and Utoda broke up. Here are some possible reasons:

1. Get together less and leave more: Due to the need of work, Kiriya Kazuaki and Utoda often travel around the world, resulting in insufficient communication between them, which may lead to emotional alienation.

2. Inconsistent marriage expectations: The marriage expectations of Kiriya Kazuaki and Utoda may be inconsistent. After marriage, they may find that their expectations of family, career and life are different, which may make their relationship tense.

3. Personality differences: Kiriya Kazuaki and Utoda may have different personalities, which may lead to contradictions in their daily life.

4. External pressure: As a public figure, all aspects of marriage life may be concerned and evaluated by the outside world, which may bring extra pressure to oneself and affect feelings.

It should be noted that these are only possible factors, and the specific reasons may only be truly understood by yourself.