Dungeon of laughter part 1 (Pixiv Fanbox)

Dungeon of laughter There is a new dungeon that has popped up with new interesting treasures that has peaked the interest of adventurers all around the globe. One of those adventurers is Lena, who is an arch mage. She excels in her field and has cleared most dungeons by herself with ease. In this world, if you die, you will respawn to a close town and there isnt much risk in exploring the dungeons... so she set out to explore this new place, well geared and well prepared. At least, that's what she thought... She enters the dungeon and the first thing she meets is a tiny little wormlike creature. Doesnt look like much, she thought this new dungeon would be a challenge for her, a bit annoyed with this weak looking creature, she attacks it with a spell. Problem was, that was the child of a bigger monster living inside. As soon as she attacked it, the scream of the little worm echoed inside the dungeon and before she could react, she felt herself being lift up and was stripped of her belongings, clothes and her staff that was needed to cast her abilities. The staff was held by the monster not far from her. Maybe she could reach it! As soon as she started to reach out for the staff, she felt tingling sensations all over her body. The monster had extended its arms and started tickling Lenas whole body. Caught by the suprise attack, she burst out in laughter. This was new to her, she had never been tickled like this before. The monster teased her with having the staff infront of her so she could almost reach it. But as soon as she tried to reach out for it, she got tickled as punishment. What kind of strange monster is this!?