Pass Through
There's a scooter with your mama carrying a task she needs to get done. You see her pass through, hurrying by to get that task done.
Imagine your mama passing through your house on a scooter, not stopping because she needs to get her task done urgently.
つう
とお, かよ
None
As you watch your mama pass through the house, she yells, "YOU HAVE TO DO THIS TASK TOO (つう)!" Too?! Oh no, now you have to do it too. Hurry up!
Why do you have to do the task too? Because there are two tasks, so the two of you have to do them.