Love Com, 16

Risa Koizumi is the tallest girl in her class, and the last thing she wants is the humiliation of being seated next to Atsushi Ôtani, the shortest boy. Fate, and the entire school, have other plans, and the two find themselves unwittingly drawn into the roles of the protagonists of a peculiar romantic comedy duo. Risa and her friends are appointed to the graduation committee and set about preparing the yearbook and the class performance. When Ôtani's photos disappear from the class album and other jokes highlight his height (or lack thereof), all signs point to Risa. Who is behind this prank, and why?