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.
Her clothes is usually a cream-colored sweater with a light blue blouse underneath, and gray slacks with sneakers. She is often seen with white headphones around her neck.
Due to her clothing preferences and her height, she is often mistaken for a boy.
Kō prefers being alone and she always apologizes to people for no particular reason. She does not usually socialize and that is why she is often anxious when talking to other people and cannot look directly into their eyes. Despite this, Kō still hopes to make friends.
She is not fond of talking, hence she does not have any friends or any form of social media. Later in the series, she meets Naoya Nifuji in the coffee shop he works for and becomes gaming friends with him, in which she helps him level up his character.
She is very fond of video games as shown both in the manga and in the anime. She also recognized the video game character Narumi Momose mentioned as she was going to meet up with Naoya. When Kō plays, she becomes oblivious to her surroundings and forgets how long she's playing as long as she is distracted by it.
Later in the manga, she is revealed to be an otaku.
Their first interaction with each other was in a coffee shop where Naoya worked as a barista and she is very anxious when talking to him. But after becoming friends with him both in general and in-game, she looks forward to meeting him now and is willing to help him out in leveling up.
- The name Kō means "light" (光).
- Kō's surname Sakuragi means "cherry blossom" (桜) (sakura) and "castle" (城) (gi).
- Unbeknownst to Naoya Nifuji, Kō is actually a girl.
|Main||Narumi Momose | Hirotaka Nifuji | Hanako Koyanagi | Tarō Kabakura | Naoya Nifuji | Kō Sakuragi|