Summoned into a Magical World to Become a Guinea Pig?

[Fantasy, comedy, harem love] Hang Tian, who has been living in the outside world, was accidentally summoned to the magical world - the inner world, and became a dependent of the junior magician Nicole. He was supposed to help her study magic, but he kept encountering various accidents. Explosion, transformation, spiritual exchange, out-of-body experience... "I asked, why do you always have accidents in your magic research?" "No way, experimentation and innovation always come with risks~" "Then why am I the only one who bears the risk?" "... Hey hey☆" "I am the guinea pig!" Hang Tian's new life in the magical world is full of surprises, and this begins!