Zero Observer: Endless Witching Path

In the world of wizards, failed spells are only worthy of being burned, and a reading of zero means the end of everything. However, the low-level apprentice Ino discovered during a port magic circle accident: the warning light had gone out, the magic reading had returned to zero, but the chains were still tightening. Powers that are judged ineffective never really disappear. With mediocre qualifications, no mentor, and unable to even afford a rented experimental desk, he could only verify the truth that no one wanted to admit from discarded samples and erroneous records. When the wizarding civilization attributes failure, responsibility and even life to "zero", what Ino has to do is not only create a brand new witchcraft, but also regain the power to define truth. The endless path of witchcraft begins with the deleted stroke.