In a move that would make any toxic ex-boyfriend proud, Itacho Sushi has officially blocked Singapore on social media and changed its number.

The Hong Kong chain shuttered every outlet, leaving thousands standing outside Ion Orchard clutching useless apps and weeping.

The company is being "struck off," corporate speak for "leaving to buy cigarettes and never coming back."

One regular diner expressed horror at the sudden abandonment.

"Wah lau, I stand there like siao lang then I realise the shop closed already," he sobbed.

"Where I find salmon skin handroll that make me feel like I high SES?"

Analysts suggest the chain preferred corporate suicide over serving teenagers sharing one plate of edamame for four hours.