[Katekyo Hitman Reborn] Happiness at 16 Centimeters

Lin Dang was suddenly bound to a System called "Happy Space," and she didn't know what to make of it. Since she couldn't fight back, she might as well enjoy it! Ahhh, why have I become so tiny? What? Only 16 cm? And it's based on the System's name? Well, I guess I should be glad I wasn't bound to a 1... oh no, maybe there's a 0 too? Wait, why are you here, my idol?! And in your adult form, no less? Wait, my idol, I don't know how to explain how I got here either. Put down the gun, and we can talk this out! Wait, what did you say, my idol? I can stay? But you don't keep useless people around? But I'm so tiny now, I can't even keep your bed warm (crossed out). Come on, my idol, I'll tell you a story. It's definitely a good one! So this is really just about a high school senior facing overwhelming academic pressure, who suddenly gets to take a trip and have an intimate encounter with her idol (not really). Theme: To be added