The phrase translates literally to "Sunflowers Bloom at Night," a title that contrasts the typically sun-loving nature of sunflowers with the darkness of night. In the world of Japanese entertainment, this title primarily refers to an adult-oriented Original Video Animation (OVA) released in 2021, exploring themes of sacrifice, marital strain, and dark office dynamics. Overview of Himawari wa Yoru ni Saku

Released on , this OVA is an adaptation of a manga by artist Hiromitsu Takeda . Produced by Studio T-Rex , the animation falls under the adult genre, specifically focusing on "Netorare" (NTR) tropes common in mature drama. Format: 1-episode OVA (approximately 16–20 minutes). Studio: T-Rex . Original Creator: Hiromitsu Takeda. Synopsis and Storyline

Norihito makes a massive financial error at work, costing his company millions.