That Day, I Became Light

My name is Su Ao, I am a teacher. I bought a spark prism online and bought a stone! I thought I had been deceived, but to my surprise there was someone talking inside the stone. He said his name was Ultraman Eddie and he came from the distant M78 nebula. From his mouth, I learned that the Kingdom of Light is now in catastrophe, most of the Ultraman have turned into stone, and only I can save them. So, I became the new Ultraman Tiga! "Diga!!" "Teacher, why is it useless?" "It's so quiet! You can't hear it, you can't hear it at all. You want to become Ultraman when you speak so quietly!?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.