Hearing her childhood friend’s voic

Hearing her childhood friend’s voice, Momoi stopped and looked around.
However, she couldn’t see anyone.
"Eh?"
"Over here, over here. Look up. Up."
"Up?"
Thinking that he might be in a classroom, Momoi looked up to the block of classrooms, but instead caught sight of Aomine’s figure at an unexpected location.
"Ah, Aomine-kun!? What are you doing!!"
"What do you mean ‘what am I doing’? I’m hanging up the banner."
Aomine Daiki had an aloof expression, and was squatting on top of one of the trees planted along both sides of the playground, looking down at Momoi ((okay i think the chinese translator did a typo with ‘书’, and actually meant ‘树' cause the first one means 'books', and the second means 'trees'. so i'm going with trees. but feel free to disagree trololol)). Indeed, he was holding onto the corner of a banner in his hands.
The other corner of the banner is already tied onto the tree on the other side. It seems that he planned to tie a large banner between the trees.
“I-It’s very dangerous! It’ll be troublesome if you were to fall and injure yourself!”
Momoi hurriedly ran under the tree, but Aomine said indifferently: “Relax, relax.” He then tied the banner onto the tree trunk.
"Alright, success."
With a sense of achievement, he slipped down the tree and jumped to Momoi’s side.
“Aomine-kun, hand! Let me see your hand!? You’re not hurt, are you!?”
Momoi anxiously grabbed both of Aomine’s hands and confirmed that his palms were not injured. This guy actually slid down the tree with his bare hands. Momoi was worried that his palms would be scratched, but fortunately, Aomine’s palms were merely dirtied a little, and were uninjured.
“That’s great.”