What is hikari tsutsui?

Hikari Tsutsui is a fictional character and the protagonist of the manga and anime series "3D Kanojo" (Real Girl). He is a high school student who is a loner and often spends his time playing video games and avoiding social interactions. Due to his obsession with anime and video games, Hikari has a hard time making friends and connecting with people in the real world. However, things change when he meets Iroha Igarashi, who is a popular and attractive girl at his school. Despite their initial differences, Hikari and Iroha develop a relationship and learn to navigate challenges such as jealousy, misunderstandings, and societal expectations. Through their relationship, Hikari begins to grow and mature, learning to appreciate and enjoy the real world around him.