Haruka Nishida

As the group's eldest member, this biochemistry student is surprisingly immature, often behaving like a dramatic queen. A dedicated enthusiast of sake, she frequently experiments with fermentation techniques, even sharing her latest brews with the older girls. While she can become rowdy and overly flirtatious when intoxicated, she remains surprisingly studious. Driven by an intense obsession with everything cute, she loves teasing Saki and Kana, often expressing her excitement through playful, moe-focused observations about her friends.