Tamon

Tamon (タモン Tamon) is the pet of the Science Club, created by Ueno's invention the Summon Stat (サモンスタット in Japanese) out of her tights.

Personality
Tamon is the result of the Summon Stat imitating an animal. It needs to replenish its energy using someone's body. Its favorite is Yamashita and its second favorite is Ueno. It doesn't seem to care about Tanaka.

History
To try to get Tanaka to worship her legs, Ueno creates Tamon out of her tights. Her idea was that if Tanaka liked Tamon, he would subconsciously connect that feeling with Ueno. However, Tamon didn't appear to care for Tanaka, leading Ueno to want to revert it back to an inanimate object. But Tanaka and Yamashita wanted to keep it, so Ueno relented.