Kisumi Shigino, a Gemini born May 26, attends Iwatobi Junior High School as a basketball club member, his salmon-pink hair and violet eyes complementing a tall frame that grows from 181 cm in adolescence to 182 cm in university. Expressive and sociable yet intermittently restless, he persistently recruits peers like Haruka Nanase, Makoto Tachibana, Asahi Shiina, and Ikuya Kirishima for basketball, though their swimming focus often sidelines his efforts. He sustains friendships regardless, notably with Asahi, their bond enduring through Hidaka University years. Haruka Nanase tolerates Kisumi’s boisterous energy with reluctant curiosity, intrigued by his creatively packed bento boxes. Family responsibilities reveal deeper layers: guilt over younger brother Hayato’s water phobia drives Kisumi to enroll him in swim lessons, while part-time work at his uncle’s real estate agency during university breaks sees him securing Tokyo apartments for Haruka and Makoto. Behind his teasing charm and driving skills lies a self-aware admission to Haruka—acknowledging a habit of favoring image over genuineness. Films like *Free! Take Your Marks* showcase his role in easing Haruka’s move to Tokyo, while *High Speed! Free! Starting Days* highlights junior high attempts to mingle with swimmers despite his non-athletic ties. The playful nickname “Kissme,” coined by Nagisa Hazuki from his name’s phonetic quirk, punctuates interactions. Later, he emerges as a festival-attending connector within the group, balancing cheer with undercurrents of solitude, his presence bridging figures like Sousuke Yamazaki and Rin Matsuoka while navigating a world anchored in swimming.