Where can I watch Kaiju Club in United States?

It’s the mid-1970s at a time before the TV recording function became commonplace. The Kaijuu Club is a group of youths that loves fancy special effects series such as Ultraman and Ultra Seven. They put everything into researching monsters which appear in these series from every possible angle and hold editorial meetings to publish a fan magazine on the monsters. The members of the club would gather at their usual coffee shop and have enthusiastic and heated discussions without being daunted by the chilly stares of the people around them.