A transfer student walks into an empty school on a holiday and meets a girl twice his size, and from that single misunderstanding, the show builds an entire world where romantic tension lives in the smallest moments. The comedy doesn't need conflict to work, it finds itself in the gap between what Shunsuke wants to say and what actually comes out, in how Natsumi's size difference becomes the perfect setup for physical comedy that never gets mean. This is a show that understands romance isn't about grand gestures; it's about showing up, being present, and letting two people discover they're exactly what the other one needed.

Transfer student Shunsuke Aoba heads to his new school on a holiday, not realizing the campus will be empty. There he meets Natsumi, known as Eru, a strikingly tall girl who towers over the much smaller Shunsuke, and the two get along right away. Used to being treated differently because of her size, Natsumi is drawn to Shunsuke for seeing her as an ordinary person. When his mother's women's clothing shop runs short of help, Shunsuke pitches in but struggles to deal with the female customers, so Eru offers a hand, much to his mother's delight. The result is a comic slice-of-life romance about the ups and downs of this mismatched pair.