This document presents a new business concept called "All in One Business" created by Dimitri Dwi Putra. The concept involves running multiple businesses under one company in order to never get bored doing just one business. The company @Si_Brain is used as an example, running 6 different business models including an art gallery, music cafe, office space, home industries, library, and online shop. It proposes that a team of 3-5 people with different specialties in areas like management, art, music, and IT could apply this concept. A SWOT analysis is suggested to evaluate strengths like varied production, easy development and simplicity, as well as weaknesses like lack of focus and control, and opportunities like no competitors and