Signal 

Once a month, Takashi is allowed to order the special cocktail at the bottom of the menu?the signal at the bar to spend a hot, steamy night with the handsome bar owner, Ashihara. But, now, Takashi wants more... A love story that's after your heart! Includes a bonus story! (Source: Renta!) Note: contains More than Words can Say, an extra-story about Shibuya and Mikami from Tarinai Jikan.