Group BTOB held their official Japanese fan club Melody Japan inauguration ceremony at the Toyosu Pit in Tokyo this past Sunday.

A total of 3,000 Japanese fans attended the ceremony as well as Japanese rock band Luna Sea guitarist Inoran. Inoran posted a photo of him with the group online and gathered much attention.

They held this ceremony five months after officially debuting in Japan. Not many groups have held their inauguration before hitting the six month mark since debuting in Japan.

BTOB was able to interact with their fans through various events as well as a cake cutting event.

They performed a total of four songs on stage including “Regrets of Love,” “Magic Time, “Future” and “Sakurairo.”

“BTOB is where we are now because of Melody,” said leader Seo Eun Kwang as he read a letter that the group wrote together for their fans posted on Mwave on Tuesday. “We’re always grateful and please follow us until the end.”

BTOB is busy with their fans events and special live concerts and will be performing around Japan until March 30.