"The 'THE MONSTERS 1:00 A.M. Series' revolves around the little monsters in the middle of the night, capturing various states of difficulty in falling asleep, capturing cute moments of night exploration, relaxation, and insomnia. This series contains 10 regular models and 1 hidden model, for a total of 11 characters."
The rarest hidden model in this series, usually designed with unique clock or alarm clock elements, with a probability of about 1/120, and has very high collection value.
A little monster that expresses irritability in the state of insomnia, the shape may be with a trace of sleepiness or helplessness.