お従兄さんの引っ越しの片づけが進まない

Takayoshi is a shy high school girl who has long harbored a crush on her handsome cousin, Fujitsugu, who moves in with her family to attend university. She’s thrilled at the chance to live under the same roof, but her excitement turns to chaos when she discovers his quirky, over-the-top personality and obsession with "little sisters," often roping her younger brother Naruka into cosplay antics. Alongside this trio, other eccentric characters—like Fujitsugu’s cousin Misao, who hides her own feelings—add to the mix of misunderstandings and hilarity. (Unreviewed summary by Grok 2)