Takatou-san Chi no Komatta Jijou: Sewayaki na Ani no Kawashikata

"Don't touch me! Please just leave me alone!" An 18-year-old guy, Hinata Takatou screams.

He now has a handsome step-brother (25 years old and the president of a company) after Hinata's mother remarried. His brother, who is sociable and a man of strong character, loves his new little stepbrother! He gently wakes up Hinata and makes breakfast and lunch for him every morning. But Hinata is a tsundere guy and stubbornly refuses to budge.

(Source: Libre, translated)