Chibi Maruko-chan: High School Mysteries and Heartfelt Tales

[High School If Parallel World | Everyone Grown Up | Youthful Light Mystery and Romantic Flutter]

Before she knew it, she'd reached the age when people cared about the second button on a shirt. But even more concerning were the strange cases that kept happening around the school.

I, Sakura Momoko, have decided to become a school detective for once, dragging Hanawa along to gather evidence, question people, and work out the timeline.

For some reason, Hanawa has been acting strangely, always stammering. He's highly suspicious.

What's even harder to accept is that I've started acting strangely too.

Wait, could this fluttering feeling be an irregular heartbeat?

That's it, I must have a heart condition!

The slow-to-catch-on girl Momoko keeps bouncing between comedy and heart-fluttering confusion as she begins to realize she's in love for the first time.

A funny mystery, a mistaken flutter, and only one truth!

Though you'll probably never guess it.