Hananoi-kun to Koi no Yamai

Hotaru Hinase, a high school freshman, has never been particularly interested in romance, content with her family and friends. One snowy evening, after witnessing the breakup of Hananoi, a handsome classmate, she offers him a gesture of kindness—an umbrella. Surprisingly, this act leads Hananoi to ask Hotaru to become his girlfriend the very next day in class. Despite her initial hesitation and confusion about what love truly means, Hotaru finds herself intrigued by Hananoi's dedication and begins to consider what it might be like to fall in love.

As Hananoi persists with his affections, performing acts of devotion despite her initial refusal, Hotaru's understanding of romantic feelings begins to change. She starts to experience emotions she had never considered before, wondering if they might grow into something deeper. This is a tale of first love, exploring the feelings between a girl who knows little of love and a boy whose love knows bounds that are perhaps too far-reaching.