Based on the given story, here's the evaluation for the Tragedy Degree and Comedy Degree:

1. **Tragedy Degree**:
   - The story includes several tragic elements such as Kenji's addiction to alcohol, his struggles with self-destructive tendencies, lost jobs, strained relationships, and deferred dreams. These elements suggest a level of emotional turmoil and setbacks.
   - However, the story also presents hope and redemption through Kenji's interaction with Aiko and his successful art exhibition. While these elements mitigate the tragedy, the emotional struggles are still quite significant.

2. **Comedy Degree**:
   - The story is not heavily comedic, but it has elements of light-heartedness and positive change, especially towards the end. The interactions with Yumi and Aiko bring some warmth and encouragement.
   - The ending is optimistic, with Kenji finding a new beginning and a brighter outlook on life, adding a touch of light-heartedness.

Given these observations, here's the scoring:

```json
{
  "TragedyDegree": 6,
  "ComedyDegree": 4
}
```
