Wonderful Days -

Depending on your interest, "Wonderful Days" also refers to: :

: A yuri manga series by Kei Hamatake that follows the evolving friendship and romance between two high school girls. Travel and Lifestyle : Wonderful Days

: The core concept is that "one day has one face." Users swipe to indicate how they felt, creating a visual graph of their happiness over time. Depending on your interest, "Wonderful Days" also refers