Graduate student Nao Nii is reunited with her beloved brother-in-law Rito after 6 years! She lives with Rito for only one month. Nao became. However, when Rihito reunites with him after a long time, he turns out to be cooler than he expected...? They talk in the morning, go to and from school together, sleep together, and... A storm of repeated complaints from the younger brother! Still, will the siblings be able to get along like they used to? The sister who wants to be pampered, the younger brother who wants to be his love interest, and the sweet-natured two-person life begins♪

https://www.cmoa.jp/title/250808/