Ai Nanasaki

Meet Tachibana, a chill girl from Class 1-B and a dedicated member of the school’s swim team. Standing at 160 cm, she’s got a calm and humble vibe that makes her easy to be around. With a younger brother named Ikuo, she embodies that relaxed, supportive friend energy. Her story takes center stage in the anime's fourth arc, where we see sweet moments unfold, like a memorable Christmas spent soaking in a hot spring. Whether it’s heartwarming rooftop confessions or intimate nights watching fireworks, Tachibana’s journey is all about love, growth, and those cozy, unforgettable moments that stay with you forever.