Lamune S01 E09 The Distance Between the Two and a Lamune Bottle

When Hiromi and Kenji were kids, Kenji traded Hiromi a bottle of lamune for her blue hairpin. Before giving the bottle to her, Kenji took a drink from it, making it where he and Hiromi shared an indirect kiss. Ever since then Hiromi has cherished the bottle. What will she do when the bottle is broken?