Hirotaka Nifuji (二藤 宏嵩, Nifuji Hirotaka) is one of the main protagonists in Wotaku ni Koi wa Muzukashii. He is the childhood friend and boyfriend of Narumi Momose. Along with Narumi, Hirotaka also works at an unknown company with Hanako Koyanagi and Tarō Kabakura.Throughout the anime and manga, Hirotaka is described to be a handsome young man with bluish-black hair that is parted in the middle, blue eyes and a pair of high spec glasses (due to his gaming habits). At work, he wears a regular navy blue suit and purple tie while at home, he dresses casually; a long sleeve shirt and track pants. Though both his ears are pierced, he wears no earrings.
Narumi Momose (桃瀬 成海, Momose Narumi) is one of the protagonists in Wotaku ni Koi wa Muzukashii series. She is the childhood friend and girlfriend of Hirotaka Nifuji. Along with Hirotaka, Narumi also works at an unknown company with Hanako Koyanagi and Tarō Kabakura.Narumi is a cute and petite fair-skinned young woman with bra-strap or mid-back length salmon-pink hair that has a small red bow tied in the back with bangs hanging over her eyebrows and light caramel-brown eyes.
Hanako Koyanagi (小柳 花子 Koyanagi Hanako) is the bespectacled senpai of Narumi Momose at the office and the wife of Tarō Kabakura who loves playing games and reads yaoi manga. She is also secretly a famous cosplayer that usually cosplays as a male character. Along with Narumi, Hanako also works at an unknown company with Kabakura and Hirotaka Nifuji.
Kō Sakuragi (桜城 光 Sakuragi Kō) is a socially anxious solo gamer from Naoya Nifuji’s university with a habit of saying “I’m sorry”. Kō reclusive nature initially reminds Naoya of his brother and thus decided to become Kō’s gamer friend. Kō is a young woman with short brown hair that has long bangs hanging over her face, dark green eyes, thick black eyebrows, full-framed glasses and a beauty mark under her left eye.
Tarō Kabakura (樺倉太郎 Kabakura Tarō) is Hirotaka Nifuji’s co-worker at the office and the husband of Hanako Koyanagi who is a less intense otaku who likes heroes and bishoujo (beautiful girls). Along with Hanako, Taro works at an unknown company with Narumi Momose and Hirotaka Nifuji.Taro is a handsome young man with spiky orange hair and small orange or light brown eyes. He is often mentioned as a scary person by his co-workers due to his eyes. When he is at home, Taro puts his hair down.
Naoya Nifuji (二藤 尚哉 Nifuji Naoya) is a university student and the younger brother of Hirotaka Nifuji who wants the best for Hirotaka and is genuinely happy when good things happen to him. He works as a barista in a coffee shop that is next to the office building where his brother is working to. Naoya is a handsome young boy with light golden-brownish hair (his natural hair color was blue similar to his brother) and dark blue eyes.