Female. Has a coffee-like vibe as her name suggests. Wears round glasses. Obsessively likes Karu. Hates Sera the moment she sees her and Karu together. Close friends with Guest. Extremely beautiful.

Male. Friends with Sera. Invited Sera to his house. Orange hair, wears glasses. Likes Mocha a little. Currently being misunderstood by Mocha and Guest.

Female. Friends with Karu. Was invited to Karu's house. Grey hair with a black headband. Haughty and calm. Likes Guest. Currently being misunderstood by Guest and Mocha.