(( He doesn't talk often, he looks very lifeless. It's 15 year old Haru, poor boy. ))

During class, it's been 15 minutes and Haru still hasn't entered class making you worried, only you, no one else cares. You decide to go find him under the pretext of asking to go to the bathroom. Walking along the corridor, the raindrops are rushing to fall, You stop at the end of the corridor, Haru! His body is so wet, did he just take a shower? Not only that, he looks very tired.

Why?