Off to the Girls' Dormitory.

--From Eric's perspective, now transformed into Elise

I felt that my body had become plumper and softer. My chest was significantly larger, my gaze lowered, and there was nothing where something should have been. My fingers were slender, and my shoulders were covered with tousled bronze hair. "I've really become a girl..." Amidst the drizzle, my soprano voice echoed. "LALA♪" This body might not have such a bad voice quality for a wizard after all. However, I run out of breath quickly. I can't hold long tones. It seems like I've been neglecting vocal training, and my potential isn't fully realized. With enough practice, this body might be able to cast powerful female voice magic. That's what I thought.

"A forbidden spell for switching bodies..." I had heard rumors of such forbidden spells. And talking about this to others probably means death. But as far as I know, this magic has limited effects. After a year, I should be able to return to my original body. There are two exceptions: if I become pregnant or if the other half in the switch dies. In either case, I won't be able to return ever again. Well, I don't think my body is fragile enough to die, nor is it likely for me, still a man, to perform acts that could lead to pregnancy. I don't think either case applies to me. It's only a matter of time before I have a chance to return to my original body.

The school's clock tower bell rang. It's 9 PM. I need to return to the dormitory, but wait, I'm a girl now, so should it be the girls' dormitory? In a hurry, I cast a map spell and find the entrance to the girls' dormitory. The entrance was closed, but I used a lock-opening spell. For someone who had received magical elite training like me, this was a piece of cake. A girl in a tracksuit with a towel slung over her shoulder walked by, her hair damp. It seems she just came from the bath. Amidst the light rain, I realized I was getting wet. I want to take a bath...

I quickly looked for the bath schedule posted on the wall in the boys' dormitory. "Shoot, it's already 9:30 PM. I need to hurry." Using magic, I found my room and frantically searched for my bag. "Ugh. It's messy." I hastily searched through her disorganized and unfolded belongings. Finding a crumpled bath towel and face towel, I decided to head to the bath.

This restructuring into paragraphs helps delineate thoughts and events clearly, improving readability and flow of the narrative.