...

Due to not meeting often, Matthew almost forgot about this little guy. But soon, the relevant information surfaced in his mind—

Astronaut Bubu, a member of the timid Arling race, is essentially a miniature spirit wandering in the space of the Star Realm. Initially, to avoid the squid ship, this timid Arling accidentally entered Matthew's Starry Sky Cabin and even provided him with some intelligence. Since then, Bubu has been living in the treehouse.

From what Matthew remembered, this timid Arling had a great personality and got along with everyone, though due to his size, his best friends in the forest were still the oak fairies.