"Guardian Monsters & Plants" 

After dodging the spider monster and swam away at a fast speed, the group slowly found some glowing water mushrooms which lit up the cave with a strange blue glow. 

When the group saw the group of strange mushrooms and their 'night light' effect, even the plant-tamer girl had to hold her breath in awe. 

"Mushrooms are actually not in the scope of plants, but I think I can tame some..." 

The plant-tamer girl was obviously interested in such unique creatures and the group also let the girl take some mushrooms for her collection. 

Anyway, these glowing underwater mushrooms were not mutant creatures and they didn't awaken consciousness or intelligence. 

After collecting the mushrooms, the group slowly floated in the water and swam deeper into the cave.