On a rainy day.
 Students got into the class as usual as before, but something was different than before. They were chatting about assignment or holidays, but the sound was not noisy as it was. The tone of chatting and laughing was vibrating softly around the classroom. If you had a little bit more sensitive ears, the reason could be found easily. All the sound in the class was mixed with the raining sound. It made the space very comfortable and  the atmosphere moisturized. Every single little thing covered under the air moist with rain. It was not flippant, but not calm, either. Everything was just appropriate to make a natural smile slowly.
- description of the classroom; ‘fall in love’ mode
I think you seem like a sensitive writer.
At first I thought it was a situation of ‘just broke up’ because of raining concept. However, it also make sense the soft raining with warm temperature~