Liar x Liar.

ライアー×ライアー

Liar × Liar (Japanese: ライアー×ライアー, Hepburn: Raiā Raiā; pronounced "Liar Liar") is a Japanese slice of life comedy manga series written and illustrated by Renjūrō Kindaichi. It's published by Kodansha, with serialization on Dessert magazine.