Birthday: April 10
Species: Human
Height: 178 cm

Saejima works at the same place as Himuro, Fuyutsuki, and Komori.

Saejima is close to Komori and possibly has romantic feelings toward her. His conversations with her usually resulted in her blushing, even though she was clueless about his feelings.

Although Saejima and Komori are clueless about each other's feelings, they're fully aware of Himuro and Fuyutsuki's situation.

Whenever Himuro became flustered, or a snowstorm of emotion is covering him, Saejima will usually be there to make comments about the situation.

Saejima means "be clear, serene, cold, skillful" (冴) (sae) and "island" (島) (shima/jima).

(Source: Koori Zokusei Danshi to Cool na Douryou Joshi Wiki)