Its Name Is Blue

There is a very normal coffee shop in the old neighborhood called "Friendship Cafe". As long as you drink the "most bitter" special coffee brewed by the shop manager himself, he can help you complete a commission. Zhang Yumeng, a third-year student at Jingma Master Academy, found the store manager when she was desperate to save her best friend. However, she didn't expect that this coffee shop was not only a black shop...