India, Feb. 5 -- The three sisters in Ghaziabad who died by suicide left behind a grim note inside a diary, which has brought to light their obsession with the Korean culture and addiction to an online task-based game even though investigations are on to understand the context that led the trio take the extreme step.

The three girls - aged 16, 14 and 11 - died after falling from the window of their flat located on the ninth floor of a building in Ghaziabad at 2am on Wednesday. Apart from addiction to Korean culture, investigation so far has pointed towards social isolation mainly on account of addiction to online world, skewed family dynamics and financial strain that the family had been going through for quite some time.

The girls were...