Jacob looked for her in the school campus and even the other students have helped him look for her but it was as if she disappeared into thin air and they couldn't find her at all. Left with no other choice, Jacob called Hana's mother asking if Hana contacted them or if she went home but they had no idea as well.
Jacob left school to look for Hana in her house but she wasn't there.
He was getting nervous and afraid. He didn't know what has happened to her or if she's in some dangerous place or if someone has abducted her without anyone knowing about it.
Unbeknownst to him, Hana was actually in their classroom. She was sleeping soundlessly but there was an invisible barrier that prevents human from seeing her. She didn't know about this and she wasn't waking up either.