Generate English words

Please create an English learning story that meets the following requirements:

Target words: **income** / **directly** / **hurt** / **species** / **immediately** / **track**

The story should have a clear logic and be suitable for adult interests, avoiding fairy tale/childish elements.

Apart from the target words, only use basic vocabulary at CEFR A1-A2 level (approximately elementary school level).

Keep the sentences short and the grammar simple.

Repeat each target word at least 5 times in the text or story.