Can't Believe My Loner Childhood Friend Became This Sexy Girl

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’.