After graduating from university and working for a video production company, Kohei Otsuru joined mybest in 2020. After comparing and verifying white goods, such as refrigerators and microwaves, he became the manager of black goods, such as televisions and headphones, utilizing my experience in video and audio. As a person in charge of comparison content, he tackled tasks such as wireless earphone sound quality measurement using dummy heads and tuneless TV image quality measurement using calibration software. In addition, he also handled gadget products such as mobile batteries and smartwatches. He was involved in more than 100 types of products. We aim to spread convenient gadgets that make daily life comfortable. We value first-hand information that can only be understood by actually using them in our content production.