Anime GTS/Shrink

How do they find clothes in your size?! You could use a single snip of thread as a blanket at that size!

Anyways...

Welcome...
To Hero Academy!

"Oh my... I finally made it!" You look up at the goddess-sized gates infront of you, the bars and walls looming higher than anything you've ever seen.

You prepare to take your first step towards it, but stop as a shoe lands a foot away, the force and wind of the impact knocking you to the lip of the sidewalk. Before you have a chance to look at the owner, she's off somewhere else.

You pat the dust off of yourself and start walking, towards the gate. It takes a minute or two for you to reach the next brick in the sidewalk. That's when you remember your rocket board, a lightweight rocket-powered skateboard that makes you go just as fast as any regular sized person!

You pull it out and toss it onto the ground. Planting both feet onto it, you flick the switch on the side and start zooming towards the gates, leaving a tiny trail if smoke in it's wake that could be seen by a regular person if they looked closely.

You were within walking distance from the gate, so you knelt down to reach the switch to turn the board off.
Click
You weren't slowing down.
Click click
Nope, still racing.
Click click click click click
"It's not working!"
BANG!
You and your board were going so fast you shot a hole all the way through the gate. And you still weren't slowing down.
"H-Help!!" You know no one could hear you, even if students were scattered across the school grounds, but you didn't know what else to do.

Looking up, you saw a wide variety of panties from the girls you rode underneath. You were so distracted that you failed to notice the bread crumb from someone's breakfast on the ground, directly infront of you.
Your skateboard shot into the air, leaving you behind crashing on the ground. Your eyes rode up the thin trail of grey smoke from your broken transport before a sudden orange 'poof' rose up at the end, like a signal flare of a man lost at sea.

Looking up is shock and awe, your only way if getting around now gone, you stood frozen, even when the booming sounds of Earth shaking grew closer and closer. A shadow descended over you, growing bigger as the shaking got stronger.
You looked over your shoulder and saw a girl, a colossal giantess, her face hidden by shadows from the sun behind her.

She stops, her feet a few feet away from you. Kneeling down, you get a better sense of her features, but still too dark to see much. What you do see, though, is her eyes scanning to ground before locking in on you. Unsure of what to do, you freeze up, simply waving at the gigantic titan looming above you.

"Hey," her voice was like a goddess calling from heaven, it was booming yet sweet toned, "I saw that little poof over, and I thought I'd check it out." She looked over at the bubble of light smoke that was still there. "Was that you?"

"Um... yeah. My rocket board malfuctioned and exploded. Now I pretty much can't go anywhere."

"Aw, you poor thing. Here, let me help you. Where are you going?" She brought her hand forward towards you, signaling you to hop on. It was terrifying, as each finger was nearly 5 times your height zooming at you (to your perspective). But you kept your cool, because that's what heros like you do!

"Okay," you say, trying to stay calm, "I'm going to Class 1-A." You get a running start before leaping onto her finger and climbing onto the palm of her hand.

"Oh, you're a student! That's... Good for you, for trying!" She lifted her hand up as she stood her full height. "I'm actually going there myself, we can be class mates!"

As she started walking towards the school, more and more light started hitting her face. Who was she?