Oshi ga Kounin Stalker ni Narimashita

Romantic comedy between a popular idol and an idol otaku!
Rooting for the super popular idol Moco Nanami is the reason for living for 17-year-old idol otaku Sora Amano. Lately, he's been worried because his belongings have been going missing. In the middle of this, Sora pursued and caught a suspicious person that was running away with his smartphone, but the identity of this person is his favorite idol Moco Nanami!?!!?
(Source: Takeshobo, translated)
Note: Includes 3 extra chapters.