"Ikémen Sengoku: Bromances Across Time" is a romantic fantasy anime series based on the popular otome game. The story centers on a modern-day protagonist, a young woman who is transported back in time to Japan's Sengoku period after encountering a mysterious artifact. Upon arrival, she finds herself surrounded by historical figures reimagined as strikingly handsome and charismatic men, each embodying the traits of famous warlords from the era.

The protagonist navigates this unfamiliar world, forming bonds with these figures, including Nobunaga Oda, Masamune Date, Hideyoshi Toyotomi, and others. Each character has a distinct personality and backstory, reflecting their historical counterparts while incorporating romantic and dramatic elements. The narrative explores her interactions with these men, blending historical events with fictionalized romantic subplots. As she becomes more entangled in their lives, she must also confront the challenges of her situation, including the possibility of returning to her own time.

The series balances romance, humor, and light drama, with a focus on the protagonist's relationships with the warlords. Themes of loyalty, love, and self-discovery are woven into the plot, as she learns to adapt to the Sengoku period while grappling with her feelings for the men around her. The story also incorporates elements of time travel and fantasy, creating a unique blend of historical and modern sensibilities. The protagonist's journey is marked by her growing understanding of the era and her place within it, as well as the emotional connections she forms with the warlords.

The anime maintains a lighthearted tone while occasionally delving into more serious themes, such as the consequences of altering history and the complexities of relationships across time. The characters' interactions drive much of the narrative, with each episode highlighting different aspects of their personalities and relationships with the protagonist. The series appeals to fans of romance and historical fiction, offering a fresh take on the Sengoku period through its imaginative reimagining of iconic figures and its focus on interpersonal dynamics.