人の物は勝手に使っちゃいけません

Source: https://twitter.com/s4_black/status/1485095622802022405

Chiyomi wanted to use Kachusha-chan's sandbox tools. However, she remembers her mother telling her, "You can't use other people's things without permission.
Instead of using Kachusha's sandbox tools, she washed them and put them back in her locker.

Source: https://twitter.com/s4_black/status/1485095894634864640

Don't use other person's things without permission.

Source: https://twitter.com/s4_black/status/1485095622802022405

English:

Chiyomi wanted to use Kachusha-chan's sandbox tools. However, she remembers her mother telling her, "You can't use other people's things without permission.
Instead of using Kachusha's sandbox tools, she washed them and put them back in her locker.

Source: https://twitter.com/s4_black/status/1485095894634864640