Love Com, 14

Risa Koizumi is the tallest girl in her class, and the last thing she wants is the humiliation of being paired with Atsushi Ôtani, the shortest boy. Fate, and the entire school, have other plans, and the two find themselves unwittingly drawn into a peculiar romantic comedy duo. Risa thought life was perfect, but she hadn't counted on her grandfather returning from abroad and instantly disliking her boyfriend. The grandfather is determined to save his beloved granddaughter from an unsuitable match. But will he go so far as to hire a busty beauty to seduce Ôtani?