AVOP-310: Yn sydyn, roedd gen i chwaer-yng-nghyfraith hyfryd! Yn fwy na hynny, pan symudais i'r ysgol mynychodd fy chwaer, roedd y dosbarth yn llawn merched a phob bachgen!

Suddenly I Got A Very Cute In-law Sister!Moreover, When I Moved To The School My Sister Attended To, I Was Full Of Girls And Men Were Alone In My Class!