Yarashii Uraaka-kun wa Samishigari

Despite his plain appearance and reclusive lifestyle, Hajime secretly posts suggestive photos of himself on social media using an alternate account. Recently, an older man he’s gotten close to online asks to meet up, so Hajime steps outside for the first time in years and waits. But when his contact arrives, it turns out to be Ayumu—the ultra-handsome idol…

(Source: Kadokawa, translated)

Note: Includes one extra chapter.