The Untouchable Midori-kun

Talk about meet-cutes… Misaki doesn’t recognize her cute new neighbor when he comes to formally introduce herself…until he reminds her that they went to school together for years! But Midori Tachibana is no longer the awkward kid she remembers—he’s the leader of Japan’s hottest new idol group! But their fated meeting is cut short when he finds out she’s an adult film actress…and he can’t be seen with her if he’s to preserve his squeaky-clean idol image! But can the chemistry between them be so easily erased? A sex-positive, sweet idol rom-com for fans of Tokyo Tarareba Girls and Ex-Enthusiasts!

source: https://www.mangaupdates.com/series/94gbt7u/midori-kun-ni-wa-sawarenai