Right when Tadokoro is running away because she is too shy to confess, Truck-kun appears... and we all know that those hit by Truck-kun end up being transported to some fantastic parallel world.
It's amusing because that's exactly the plot of "Leda: The Fantastic Adventure of Yoko" (or "Genmu Senki Leda"). Do you remember?
Leda was the first shoujo-genre direct-to-video anime film ever. The story is like this: Yoko, the MC, wants to confess her love to some hunky guy, but, even though she tries her best to fortify her resolve, in the end shyness overwhelms her and she is unable to talk to him. Then, while she is moping about her failure, bam: she is transported to Ashanti, a fantastic alternate world where she becomes the holy warrior who, according to prophecy, must single-handedly defeat the evil wizard lord who plans to bring ruin and calamity to both Ashanti and our world. So she pretty much spends the whole movie in a battle bikini, wielding a huge sword and fighting monsters and mechas and all sorts of baddies; and, eventually, after she beats the wizard in a climactic final duel, she manages to return to Japan, and finds that - get braced for this! - her experiences in Ashanti have made her a little bit stronger and she finally, finally has the courage to confess her love to the one she likes!
It absolutely hilarious, when you think about it, that this movie is based on the premise that it takes a whole isekai adventure, a great epic saga full of battles and action and whatnot, to give a pure-hearted young maiden the mental fortitude necessary to speak to her crush.
I totally love the Leda movie to bits... but let's hope this story will not take that path. I don't want Tadokoro to go through a 200-chapter adventure in a parallel universe before being able to confess.