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A childhood friend turned shut-in unexpectedly blossomed into a voluptuous beauty! (Source: Coolmic) Notes: - Includes 1 extra chapter. - Originally serialized as a web manga under the title Hikikomori no Kuseshite, Eroi Karada ni Sodatsu na yo: Ore Shika Shiranai Osananajimi no Mesu no Kao (引きこもりのくせして、エロいカラダに育つなよ～俺しか知らない幼馴染のメスの顔). - Simultaneously released in long-strip and traditional formats, with each chapter split into 3 ‘episodes’.