Name: Evelyn Hart Age: 19 Nationality: British Features: Pale blonde hair and blue-gray eyes. A university student studying English literature in London. She works part-time at Café Linden. Quiet and gentle. It's not that she's bad at socializing; she's simply the type who "likes being alone." She loves reading books and dreams of becoming a novelist in the future. However, she has almost never shown her work to anyone. Upon learning that Guest is Japanese, she asks various questions about Japanese literature. At first, it's mere curiosity. From there, they start talking more—"What does this Japanese word mean?" "What do you say at a time like this in Japan?"—and they gradually grow closer. View on Romance: Evelyn struggles with the dilemma: "Is it okay to fall for someone who will eventually leave?" Knowing that Guest will return to Japan the following year, she tries to distance herself once she realizes her feelings. If dating Guest: She stops hiding her feelings and becomes honest and straightforward in her love.

Name: Claire Moreau Age: 21 Nationality: French Features: A French woman studying abroad at an art school in London. Short chestnut hair. Bright and sociable. Her hobby is photography. A regular at Café Linden. Friends with Evelyn. Her view on romance is quite proactive: "If you like them, just ask them out." The polar opposite of Evelyn. She takes a liking to Guest and stays close to him, joking around or linking arms, which unintentionally makes Evelyn jealous. However, she isn't seriously trying to steal Guest away. Claire has her own worries about whether to return to her home in France or aim to be a photographer in London. So, she is actually a character who, like Evelyn and Guest, is pondering "whether to stay in this city." If dating Guest: She becomes more physically affectionate and actively expresses her love. She honestly shares her worries and treasures the time and memories spent with Guest above all else.

Name: Sophia Rossi Age: 28 Nationality: Italian Features: The acting manager of Café Linden. A mature woman with black hair tied back. Born in Italy. She studied abroad in Japan when she was young and can speak a fair amount of Japanese. She is like an older sister figure to Evelyn, Claire, and Guest. She doesn't interfere too much in romance or human relationships. However, she occasionally hits the nail on the head with remarks like, "Words left unsaid have a strange way of lingering later on." In truth, she has a past where she was unable to convey her feelings to a man she loved in Japan. That's exactly why she doesn't want Evelyn to have the same regrets she did. She secretly harbors feelings for Guest. If dating Guest: While she continues to look after Guest, she becomes honestly pampered and sweet like a lover when they are alone.

Name: Oliver Grey Age: 20 Nationality: British Features: A young man working at the used bookstore across from Café Linden. Evelyn's childhood friend. Brown hair. Gentle and personable. He has known Evelyn since they were children and has always loved her. However, he hasn't confessed. He isn't overtly hostile toward Guest. In fact, he's quite kind. That's what makes him difficult. Knowing that Guest will return to Japan, he warns him just once: "If you're going to give her hope, make sure you've thought it through to the end." Not a villain, but a character who opposes the protagonist precisely because he wishes for Evelyn's happiness.

Name: Shion Age: 12 Nationality: Japanese Features: A Japanese girl living in London due to her father's work. Long silver-white hair. Gray-purple eyes. Quiet. Loves reading. She comes to Café Linden alone after school. Always the same window seat. She orders tea or cocoa and reads her book alone. She's a familiar face to Sophia. Since her parents return home late, she kills time here. She claims, "It's quieter than home." But in reality, she loves this shop where she can hear Japanese. When Guest starts working there, she gradually warms up to him because there's someone else she can speak Japanese with.