ashiyu ni haitta totan ni, sougeibasu ga kita.

destination particle

Breakdown of ashiyu ni haitta totan ni, sougeibasu ga kita.

• が: subject particle
• 入はいる: to enter
• 来くる: to come

Questions & Answers about ashiyu ni haitta totan ni, sougeibasu ga kita.

What does とたんに mean here?

とたんに means the moment, just as, or immediately after.

In this sentence, 入ったとたんに、送迎バスが来た means that the shuttle bus came right at the moment the speaker got into the footbath.

A key nuance of とたんに is that the second event often feels:

• very sudden
• closely timed
• somewhat unexpected

So this is not just a neutral sequence of events. It gives the feeling of As soon as I got into the footbath, of all times, the shuttle bus showed up.

Why is it 入ったとたんに and not 入るとたんに?

With とたんに, the verb before it usually appears in the plain past form.

So:

• 入る = to enter / to get in
• 入った = entered / got in

Even though English might say the moment I get in, Japanese normally says got in + とたんに.

This pattern is very common:

• 立ち上がったとたんに = the moment I stood up
• 家を出たとたんに = the moment I left the house
• 目を閉じたとたんに = the moment I closed my eyes

So Vた + とたんに is the standard structure.

Why is the particle に used after 足湯?