"Tono to Issho" is a short-form anime series that blends historical parody with comedic elements, set during Japan's Sengoku period. The narrative revolves around the daily life and interactions of Date Masamune, the famed one-eyed daimyo of the Date clan, and his retainers. The series adopts a lighthearted and absurd approach to historical figures, presenting them in exaggerated and often humorous situations that deviate from their serious historical portrayals.

The central character, Date Masamune, is depicted as a charismatic and somewhat eccentric leader, often accompanied by his loyal vassals, including Katakura Kojuro, a stoic and dutiful retainer who frequently finds himself exasperated by Masamune's antics. The dynamic between Masamune and his retainers forms the core of the series, with their interactions driving much of the humor. The show frequently incorporates anachronistic elements, such as modern-day references and slapstick comedy, to create a playful contrast with the historical setting.

Episodes are structured as short, self-contained vignettes, each focusing on a specific comedic scenario or interaction. These scenarios often involve misunderstandings, exaggerated rivalries with other historical figures, or absurd situations that highlight the quirks of the characters. For example, Masamune's obsession with his iconic crescent-moon helmet or his rivalry with other warlords like Sanada Yukimura are recurring themes that provide comedic fodder.

The series also features a rotating cast of other Sengoku-era figures, such as Oda Nobunaga, Toyotomi Hideyoshi, and Tokugawa Ieyasu, all portrayed in a similarly exaggerated and comedic manner. These characters frequently appear in supporting roles, adding variety to the humor and expanding the scope of the narrative beyond Masamune's immediate circle.

Despite its comedic tone, "Tono to Issho" occasionally incorporates brief moments of historical context or references to actual events from the Sengoku period, though these are always presented through a lens of parody. The show's brevity and episodic structure make it accessible, with each episode delivering quick, punchy humor without requiring extensive knowledge of Japanese history.

Overall, "Tono to Issho" offers a whimsical and irreverent take on the Sengoku period, using its historical setting as a backdrop for comedic storytelling centered around the larger-than-life personalities of its characters.