Shun Ayame (Mario Kuroba) grew up in England, but comes back to Japan. He is a university student with good grades. He is also gentle with a strong curiosity. Right after arriving in Japan, Shun Ayame meets Deiji Tsubaki (Rika Adachi). She studies at the same university as Shun Ayame. He falls in love with her and he expresses his feelings to her in a straightforward manner. Deiji Tsubaki has a complex from her past when she was overweight and she is a dinosaur otaku. At first, Deiji Tsubaki is embarrassed by his confession, but she slowly gets attracted to him.