By chance, you managed to land safely on Yuriko's palm, avoiding her fingers at the same time. You frantically waved your arms about, hoping your childhood friend would see you, but to no avail. Making matters worse, as Yuriko got back up to a standing position, her hand was also hanging downwards, which makes standing at your position impossible, causing you to fall off. If that happens, all your efforts would surely be in vain.
Wasting no chances, you started climbing up Yuriko's palm, and made your way through her uniform sleeve ad up her lower arm. You decided that if she cannot see you, you have to get closer to her face, mainly her eyes or ears. You had never been at the peak of physical fitness, but human skin is surprisingly soft and easy to grab. Using that advantage, you kept climbing Yuriko's lower arm, and made your way up towards her main elbow.
You nearly got the scare of your life when you saw the outline Yuriko's other hand slamming right below you. You thought that she might have seen you and mistaken you for a bug, but to your relief, she only started stratching with her fingers. You have to be slightly more careful at climbing Yuriko's arm now, as she could clearly feel you now, her scratching matches the position you were in a few moments ago. Even if she cannot see you, she can still feel you inside her uniform.
You finally reach her shoulder, and you could see how small you were to Yuriko, like how an insect would see the human body as a landscape to move about. This also caused you to notice Yuriko's firm breasts down there, like the size of large and soft hills cupped by a pinkish-white bra. As tempting as that may be, you still wanted to get Yuriko's attention, and that involves climbing up towards her face, which could be more dangerous than climbing her arm. Where would you go?