Chika began his career at Hakuhodo in 2003. After working as a copywriter at TBWA CHIAT DAY and a creative director at TBWA HAKUHODO, he launched the ‘Co-Creation Creative Studio PROJECT_Vega’ in 2023. He works for branding and social action that has a major impact on society. His works got reputations including ‘The Restaurant of Mistaken Orders’, ‘COGY, the wheelchair for those who still believe’, ‘GIGA Selfie, the world's biggest selfie service’ and so on. He has won awards, including Cannes Lion Gold, Ad fest Grand Prix, ACC Grand Prix and so on. He is passionate about nurturing the next generation as a lecturer at Meiji University, Hitotsubashi University, and other institutions.