Galge no Sekai de Shinyuu ♂ ga Ore o Sukida to Iidashite!?

Why won't you try for an ending with me? One tiny freakout brings best friends Aoi and Ritsuki smack dab into the middle of the world of a dating sim. All this time, Aoi has been trying to act like a cool guy who doesn't care about love, but now that his cover is blown, is this his chance to complete a romance route just for him? And why is Ritsuki's affection meter looking like that?

(Source: Futekiya)

Note: Chapter count includes an extra.