Born on April 11 in Tokyo, Japan, Hasegawa is a 32-year-old section chief recognized for his sharp wit and assertive personality, complemented by his 186 cm (6’1”) height and B blood type.

​He comes from a loving and supportive family of mixed Japanese and Korean heritage. His father was a senior executive in a real estate company before retiring, while his mother is a Korean-Japanese baker who runs a successful bakery shop. He is the middle child, with one older sister and one younger sister.

After attending a public university in Japan, majoring in Economics, Hasegawa built a career in the Procurement Department at Higashi Engineering Corporation in Osaka.

​Outside of work, he enjoys playing basketball, a sport he has loved since middle school. Video games are another passion, with a strong preference for Action RPGs. Hasegawa is also an avid manga reader, particularly enjoying sports, shounen, and seinen manga. Perhaps surprisingly, he has a talent for baking and cooking, a skill he picked up from helping his mother in the bakery. And occasionally, he sings and plays the guitar, though mostly for himself.