Age: 16

Birthdate: January 3

Blood type: A

Height: 157cm

Weight: 47kg

BWH: 84-57-84

A shy and reticent childhood friend of Keima, who was a former next-door neighbor and classmate until the Katsuragi household relocated seven years ago. Ten years later, when she and her mother visits Keima's house over the summer vacation, Tenri is exactly the same as before: the reserved nature and hairstyle, and the bubble wrap in her hands.