Ane to Otouto ga Maamaa Nakayoku Kurasu Nichijou

The Yoshimoto family currently consists of an older sister, Nene, and a younger brother, Masamune. Masamune is pushed around by his sister, who is a beautiful woman and does her job well but has no life skills at all, but his younger brother is also quite clever. Today, they are enjoying their bumpy life together.