Embark on a hilarious journey with Kentarou, an awkward college student, as he finds himself entangled in unexpected troubles in 'Big Sister from the 9th Dimensional World'. This tale is far from a simple stray cat rescue, offering a unique blend of comedy, drama, harem, romance, school life, and slice of life genres. Delve into the world of aliens and human-nonhuman relationships, following a cautious protagonist through classic scenarios with a forced relationship twist. Join Kentarou as he navigates through the complexities of life and love with a charming older woman from another dimension.