A marriage between [Ryuunosuke](https://anilist.co/character/3646/Ryuunosuke-Fujinami) and Nagisa was arranged by their two fathers who were longtime friends. Nagisa is deeply in love with Ryuunosuke but Ryuunosuke refuses, at first saying she can't marry another girl and then being off-put by Nagisa's intense advances. Nagisa is a voracious eater and a champion sumo wrestler, even stronger than Ryuunosuke.
